Difference between revisions of "Help:Editing"
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− | + | === Basic text formatting === | |
{| width="100%" border="1" cellpadding="2" cellspacing="0" | {| width="100%" border="1" cellpadding="2" cellspacing="0" | ||
Line 11: | Line 11: | ||
3 apostrophes will bold '''the text'''. | 3 apostrophes will bold '''the text'''. | ||
− | 5 apostrophes will bold | + | 5 apostrophes will bold & italicize '''''the text'''''. |
+ | |||
+ | Note: There's no wiki formatting for 4 apostrophes. | ||
+ | ''''4 apostrophes'''' will be read as 3, leaving the rest 1 apostrophe on each side. | ||
+ | |<pre> | ||
+ | You can ''italicize text'' by putting 2 | ||
+ | apostrophes on each side. | ||
+ | |||
+ | 3 apostrophes will bold '''the text'''. | ||
+ | |||
+ | 5 apostrophes will bold & italicize | ||
+ | '''''the text'''''. | ||
+ | |||
+ | Note: There's no wiki formatting for 4 apostrophes. | ||
+ | ''''4 apostrophes'''' will be read as 3, | ||
+ | leaving the rest 1 apostrophe on each side. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | A single newline | ||
+ | has no effect | ||
+ | on the layout. | ||
+ | But an empty line | ||
+ | |||
+ | starts a new paragraph. | ||
+ | |<pre> | ||
+ | A single newline | ||
+ | has no effect | ||
+ | on the layout. | ||
+ | But an empty line | ||
+ | |||
+ | starts a new paragraph. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | You can break lines<br> | ||
+ | without a new paragraph.<br> | ||
+ | Please use this sparingly. | ||
+ | |<pre> | ||
+ | You can break lines<br> | ||
+ | without a new paragraph.<br> | ||
+ | Please use this sparingly. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | You should "sign" your comments on talk pages: <br> | ||
+ | - Three tildes gives your user name: [[User:Karl Wick|Karl Wick]] <br> | ||
+ | - Four tildes give your user name plus date/time: [[User:Karl Wick|Karl Wick]] 07:46, 27 November 2005 (UTC) <br> | ||
+ | - Five tildes gives the date/time alone: 07:46, 27 November 2005 (UTC) <br> | ||
+ | |<pre> | ||
+ | You should "sign" your comments | ||
+ | on talk pages: <br> | ||
+ | - Three tildes gives your user | ||
+ | name: ~~~ <br> | ||
+ | - Four tildes give your user | ||
+ | name plus date/time: ~~~~ <br> | ||
+ | - Five tildes gives the | ||
+ | date/time alone: ~~~~~ <br> | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | You can use <b>HTML tags</b>, too, if you | ||
+ | want. Some useful ways to use HTML: | ||
+ | |||
+ | Put text in a <tt>typewriter font</tt>. The same | ||
+ | font is generally used for <code>computer code</code>. | ||
+ | |||
+ | <strike>Strike out</strike> or <u>underline</u>text, | ||
+ | or write it <span style="font-variant:small-caps"> | ||
+ | in small caps</span>. | ||
+ | |||
+ | Superscripts and subscripts: | ||
+ | X<sup>2</sup>, H<sub>2</sub>O | ||
+ | |||
+ | Invisible comments to editors ( <!-- --> ) only appear while editing the page. Eg: | ||
+ | <!-- Note to editors: blah blah blah. --> | ||
+ | |||
+ | If you wish to make comments to the public, you should usually go on the talk page, though. | ||
+ | |<pre> | ||
+ | You can use <b>HTML tags</b>, | ||
+ | too, if you want. Some useful | ||
+ | ways to use HTML: | ||
+ | |||
+ | Put text in a <tt>typewriter | ||
+ | font</tt>. The same font is | ||
+ | generally used for <code> | ||
+ | computer code</code>. | ||
+ | |||
+ | <strike>Strike out</strike> | ||
+ | or <u>underline</u> text, | ||
+ | or write it <span style= | ||
+ | "font-variant:small-caps"> | ||
+ | in small caps</span>. | ||
+ | |||
+ | Superscripts and subscripts: | ||
+ | X<sup>2</sup>, H<sub>2</sub>O | ||
+ | |||
+ | Invisible comments to editors ( <!-- --> ) | ||
+ | only appear while editing the page. Eg: | ||
+ | <!-- Note to editors: blah blah blah. --> | ||
+ | |||
+ | If you wish to make comments to the public, | ||
+ | you should usually go on the talk page, though. | ||
+ | </pre> | ||
+ | |- | ||
+ | | '''More Examples of HTML tags''' | ||
+ | Do you like coloring this particular <font color="red">word</font>?<br> | ||
+ | Do you like coloring this particular <font color="#33FF66">word</font>?<br> | ||
+ | |||
+ | <span style="background-color: yellow">White background is too dull. Change it!</span><br> | ||
+ | <span style="background-color: #FF6633">White background is too dull. Change it!</span><br> | ||
+ | | <pre>'''More Examples of HTML tags''' | ||
+ | Do you like coloring this | ||
+ | particular <font color="red">word</font>?<br> | ||
+ | Do you like coloring this | ||
+ | particular <font color="#33FF66">word</font>?<br> | ||
+ | |||
+ | <span style="background-color: yellow">White | ||
+ | background is too dull. Change it!</span><br> | ||
+ | <span style="background-color: #FF6633">White | ||
+ | background is too dull. Change it!</span><br></pre> | ||
+ | |} | ||
+ | |||
+ | For a list of HTML tags that are allowed, see [[Help:HTML in wikitext|HTML in wikitext]]. However, you should avoid HTML in favor of Wiki markup whenever possible. | ||
+ | |||
+ | |||
+ | === Organizing your writing === | ||
+ | {|width="100%" border="1" cellpadding="2" cellspacing="0" | ||
+ | |- | ||
+ | !What it looks like | ||
+ | !What you type | ||
+ | |- | ||
+ | | | ||
+ | <div style="font-size:150%;border-bottom:1px solid #000000;">Section headings</div> | ||
+ | |||
+ | ''Headings'' organize your writing into sections. | ||
+ | The Wiki software can automatically generate | ||
+ | a table of contents from them. | ||
+ | |||
+ | <div style="font-size:132%;font-weight:bold;">Subsection</div> | ||
+ | Using more equals signs creates a subsection. | ||
+ | |||
+ | <div style="font-size:116%;font-weight:bold;">A smaller subsection</div> | ||
+ | |||
+ | Don't skip levels, like from two to four equals signs. | ||
+ | |||
+ | Start with 2 equals signs not 1 because 1 creates H1 tags which should be reserved for page title. | ||
+ | |<pre> | ||
+ | == Section headings == | ||
+ | |||
+ | ''Headings'' organize your writing into sections. | ||
+ | The Wiki software can automatically generate | ||
+ | a table of contents from them. | ||
+ | |||
+ | === Subsection === | ||
+ | |||
+ | Using more equals signs creates a subsection. | ||
+ | |||
+ | ==== A smaller subsection ==== | ||
+ | |||
+ | Don't skip levels, | ||
+ | like from two to four equals signs. | ||
+ | |||
+ | Start with 2 equals signs not 1 | ||
+ | because 1 creates H1 tags | ||
+ | which should be reserved for page title. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | * ''Unordered lists'' are easy to do: | ||
+ | ** Start every line with a star. | ||
+ | *** More stars indicate a deeper level. | ||
+ | * A newline | ||
+ | * in a list | ||
+ | marks the end of the list. | ||
+ | *Of course you can start again. | ||
+ | |<pre> | ||
+ | * ''Unordered lists'' are easy to do: | ||
+ | ** Start every line with a star. | ||
+ | *** More stars indicate a deeper level. | ||
+ | * A newline | ||
+ | * in a list | ||
+ | marks the end of the list. | ||
+ | * Of course you can start again. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | # ''Numbered lists'' are: | ||
+ | ## Very organized | ||
+ | ## Easy to follow | ||
+ | A newline marks the end of the list. | ||
+ | # New numbering starts with 1. | ||
+ | |||
+ | |<pre> | ||
+ | # ''Numbered lists'' are also good: | ||
+ | ## Very organized | ||
+ | ## Easy to follow | ||
+ | A newline marks the end of the list. | ||
+ | # New numbering starts with 1. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | Another kind of list is a ''definition list'': | ||
+ | ; Word : Definition of the word | ||
+ | ; Here is a longer phrase that needs a definition | ||
+ | : Phrase defined | ||
+ | ; A word : Which has a definition | ||
+ | : Also a second one | ||
+ | : And even a third | ||
+ | |<pre> | ||
+ | Another kind of list is a ''definition list'': | ||
+ | ; Word : Definition of the word | ||
+ | ; Here is a longer phrase that needs a definition | ||
+ | : Phrase defined | ||
+ | ; A word : Which has a definition | ||
+ | : Also a second one | ||
+ | : And even a third | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | * You can even do mixed lists | ||
+ | *# and nest them | ||
+ | *# inside each other | ||
+ | *#* or break lines<br>in lists. | ||
+ | *#; definition lists | ||
+ | *#: can be | ||
+ | *#;; nested too | ||
+ | |<pre> | ||
+ | * You can even do mixed lists | ||
+ | *# and nest them | ||
+ | *# inside each other | ||
+ | *#* or break lines<br>in lists. | ||
+ | *#; definition lists | ||
+ | *#: can be | ||
+ | *#;; nested too | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | : A colon (:) indents a line or paragraph. | ||
+ | A newline after that starts a new paragraph. <br> | ||
+ | This is often used for discussion on talk pages. | ||
+ | : We use 1 colon to indent once. | ||
+ | :: We use 2 colons to indent twice. | ||
+ | ::: We use 3 colons to indent 3 times, and so on. | ||
+ | |<pre> | ||
+ | : A colon (:) indents a line or paragraph. | ||
+ | A newline after that starts a new paragraph. <br> | ||
+ | This is often used for discussion on talk pages. | ||
+ | : We use 1 colon to indent once. | ||
+ | :: We use 2 colons to indent twice. | ||
+ | ::: We use 3 colons to indent 3 times, and so on. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | You can make horizontal dividing lines (----) | ||
+ | to separate text. | ||
+ | ---- | ||
+ | But you should usually use sections instead, | ||
+ | so that they go in the table of contents. | ||
+ | |<pre> | ||
+ | You can make horizontal dividing lines (----) | ||
+ | to separate text. | ||
+ | ---- | ||
+ | But you should usually use sections instead, | ||
+ | so that they go in the table of contents. | ||
+ | </pre> | ||
+ | |- | ||
+ | |Sometimes you may need to reference or add supplementary notes to your sentences. | ||
+ | We may use the ref or refun tag. Eg: <br> | ||
+ | There are XX numbers of people in the world.<ref>The source is quoted from ...</ref> <br> | ||
+ | |||
+ | Reference: <references/> | ||
+ | |||
+ | |<pre> | ||
+ | Sometimes you may need to reference or add supplementary | ||
+ | notes to your sentences. | ||
+ | We may use the ref or refun tag. Eg: <br> | ||
+ | There are XX numbers of people in the world.<ref>The | ||
+ | source is quoted from ...</ref> <br> | ||
+ | |||
+ | Reference: <references/> | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | | | ||
+ | |- | ||
+ | | | ||
+ | | | ||
+ | |} | ||
+ | |||
+ | == Section headings == | ||
+ | |||
+ | ''Headings'' organize your writing into sections. | ||
+ | The Wiki software can automatically generate | ||
+ | a table of contents from them. | ||
+ | |||
+ | === Subsection === | ||
+ | |||
+ | Using more equals signs creates a subsection. | ||
+ | |||
+ | ==== A smaller subsection ==== | ||
+ | |||
+ | Don't skip levels, | ||
+ | like from two to four equals signs. | ||
+ | |||
+ | Start with 2 equals signs not 1 | ||
+ | because 1 creates H1 tags | ||
+ | which should be reserved for page title. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | * ''Unordered lists'' are easy to do: | ||
+ | ** Start every line with a star. | ||
+ | *** More stars indicate a deeper level. | ||
+ | * A newline | ||
+ | * in a list | ||
+ | marks the end of the list. | ||
+ | *Of course you can start again. | ||
+ | |<pre> | ||
+ | * ''Unordered lists'' are easy to do: | ||
+ | ** Start every line with a star. | ||
+ | *** More stars indicate a deeper level. | ||
+ | * A newline | ||
+ | * in a list | ||
+ | marks the end of the list. | ||
+ | * Of course you can start again. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | # ''Numbered lists'' are: | ||
+ | ## Very organized | ||
+ | ## Easy to follow | ||
+ | A newline marks the end of the list. | ||
+ | # New numbering starts with 1. | ||
+ | |||
+ | |<pre> | ||
+ | # ''Numbered lists'' are also good: | ||
+ | ## Very organized | ||
+ | ## Easy to follow | ||
+ | A newline marks the end of the list. | ||
+ | # New numbering starts with 1. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | Another kind of list is a ''definition list'': | ||
+ | ; Word : Definition of the word | ||
+ | ; Here is a longer phrase that needs a definition | ||
+ | : Phrase defined | ||
+ | ; A word : Which has a definition | ||
+ | : Also a second one | ||
+ | : And even a third | ||
+ | |<pre> | ||
+ | Another kind of list is a ''definition list'': | ||
+ | ; Word : Definition of the word | ||
+ | ; Here is a longer phrase that needs a definition | ||
+ | : Phrase defined | ||
+ | ; A word : Which has a definition | ||
+ | : Also a second one | ||
+ | : And even a third | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | * You can even do mixed lists | ||
+ | *# and nest them | ||
+ | *# inside each other | ||
+ | *#* or break lines<br>in lists. | ||
+ | *#; definition lists | ||
+ | *#: can be | ||
+ | *#;; nested too | ||
+ | |<pre> | ||
+ | * You can even do mixed lists | ||
+ | *# and nest them | ||
+ | *# inside each other | ||
+ | *#* or break lines<br>in lists. | ||
+ | *#; definition lists | ||
+ | *#: can be | ||
+ | *#;; nested too | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | : A colon (:) indents a line or paragraph. | ||
+ | A newline after that starts a new paragraph. <br> | ||
+ | This is often used for discussion on talk pages. | ||
+ | : We use 1 colon to indent once. | ||
+ | :: We use 2 colons to indent twice. | ||
+ | ::: We use 3 colons to indent 3 times, and so on. | ||
+ | |<pre> | ||
+ | : A colon (:) indents a line or paragraph. | ||
+ | A newline after that starts a new paragraph. <br> | ||
+ | This is often used for discussion on talk pages. | ||
+ | : We use 1 colon to indent once. | ||
+ | :: We use 2 colons to indent twice. | ||
+ | ::: We use 3 colons to indent 3 times, and so on. | ||
+ | </pre> | ||
+ | |- | ||
+ | | | ||
+ | You can make horizontal dividing lines (----) | ||
+ | to separate text. | ||
+ | ---- | ||
+ | But you should usually use sections instead, | ||
+ | so that they go in the table of contents. | ||
+ | |<pre> | ||
+ | You can make horizontal dividing lines (----) | ||
+ | to separate text. | ||
+ | ---- | ||
+ | But you should usually use sections instead, | ||
+ | so that they go in the table of contents. | ||
+ | </pre> | ||
+ | |- | ||
+ | |Sometimes you may need to reference or add supplementary notes to your sentences. | ||
+ | We may use the ref or refun tag. Eg: <br> | ||
+ | There are XX numbers of people in the world.<ref>The source is quoted from ...</ref> <br> | ||
+ | |||
+ | Reference: <references/> | ||
+ | |||
+ | For details, see [[Wikipedia:Footnotes]] & [[Help:Footnotes]]. | ||
+ | |<pre> | ||
+ | Sometimes you may need to reference or add supplementary | ||
+ | notes to your sentences. | ||
+ | We may use the ref or refun tag. Eg: <br> | ||
+ | There are XX numbers of people in the world.<ref>The | ||
+ | source is quoted from ...</ref> <br> | ||
+ | |||
+ | Reference: <references/> | ||
+ | |||
+ | For details, see Wikipedia:Footnotes & Help:Footnotes. | ||
+ | </pre> | ||
+ | |||
+ | == Image insertion == | ||
+ | You can find a complete tutorial [[Image_howto|here]]. |
Latest revision as of 03:23, 10 June 2007
Contents
Basic text formatting
What it looks like | What you type |
---|---|
You can italicize text by putting 2 apostrophes on each side. 3 apostrophes will bold the text. 5 apostrophes will bold & italicize the text. Note: There's no wiki formatting for 4 apostrophes. '4 apostrophes' will be read as 3, leaving the rest 1 apostrophe on each side. |
You can ''italicize text'' by putting 2 apostrophes on each side. 3 apostrophes will bold '''the text'''. 5 apostrophes will bold & italicize '''''the text'''''. Note: There's no wiki formatting for 4 apostrophes. ''''4 apostrophes'''' will be read as 3, leaving the rest 1 apostrophe on each side. |
A single newline has no effect on the layout. But an empty line starts a new paragraph. |
A single newline has no effect on the layout. But an empty line starts a new paragraph. |
You can break lines |
You can break lines<br> without a new paragraph.<br> Please use this sparingly. |
You should "sign" your comments on talk pages: |
You should "sign" your comments on talk pages: <br> - Three tildes gives your user name: ~~~ <br> - Four tildes give your user name plus date/time: ~~~~ <br> - Five tildes gives the date/time alone: ~~~~~ <br> |
You can use HTML tags, too, if you want. Some useful ways to use HTML: Put text in a typewriter font. The same
font is generally used for
Superscripts and subscripts: X2, H2O Invisible comments to editors ( ) only appear while editing the page. Eg: If you wish to make comments to the public, you should usually go on the talk page, though. |
You can use <b>HTML tags</b>, too, if you want. Some useful ways to use HTML: Put text in a <tt>typewriter font</tt>. The same font is generally used for <code> computer code</code>. <strike>Strike out</strike> or <u>underline</u> text, or write it <span style= "font-variant:small-caps"> in small caps</span>. Superscripts and subscripts: X<sup>2</sup>, H<sub>2</sub>O Invisible comments to editors ( <!-- --> ) only appear while editing the page. Eg: <!-- Note to editors: blah blah blah. --> If you wish to make comments to the public, you should usually go on the talk page, though. |
More Examples of HTML tags
Do you like coloring this particular word? White background is too dull. Change it! |
'''More Examples of HTML tags''' Do you like coloring this particular <font color="red">word</font>?<br> Do you like coloring this particular <font color="#33FF66">word</font>?<br> <span style="background-color: yellow">White background is too dull. Change it!</span><br> <span style="background-color: #FF6633">White background is too dull. Change it!</span><br> |
For a list of HTML tags that are allowed, see HTML in wikitext. However, you should avoid HTML in favor of Wiki markup whenever possible.
Organizing your writing
What it looks like | What you type |
---|---|
Section headings
Headings organize your writing into sections. The Wiki software can automatically generate a table of contents from them. Subsection
Using more equals signs creates a subsection. A smaller subsection
Don't skip levels, like from two to four equals signs. Start with 2 equals signs not 1 because 1 creates H1 tags which should be reserved for page title. |
== Section headings == ''Headings'' organize your writing into sections. The Wiki software can automatically generate a table of contents from them. === Subsection === Using more equals signs creates a subsection. ==== A smaller subsection ==== Don't skip levels, like from two to four equals signs. Start with 2 equals signs not 1 because 1 creates H1 tags which should be reserved for page title. |
marks the end of the list.
|
* ''Unordered lists'' are easy to do: ** Start every line with a star. *** More stars indicate a deeper level. * A newline * in a list marks the end of the list. * Of course you can start again. |
A newline marks the end of the list.
|
# ''Numbered lists'' are also good: ## Very organized ## Easy to follow A newline marks the end of the list. # New numbering starts with 1. |
Another kind of list is a definition list:
|
Another kind of list is a ''definition list'': ; Word : Definition of the word ; Here is a longer phrase that needs a definition : Phrase defined ; A word : Which has a definition : Also a second one : And even a third |
|
* You can even do mixed lists *# and nest them *# inside each other *#* or break lines<br>in lists. *#; definition lists *#: can be *#;; nested too |
A newline after that starts a new paragraph.
|
: A colon (:) indents a line or paragraph. A newline after that starts a new paragraph. <br> This is often used for discussion on talk pages. : We use 1 colon to indent once. :: We use 2 colons to indent twice. ::: We use 3 colons to indent 3 times, and so on. |
You can make horizontal dividing lines (----) to separate text. But you should usually use sections instead, so that they go in the table of contents. |
You can make horizontal dividing lines (----) to separate text. ---- But you should usually use sections instead, so that they go in the table of contents. |
Sometimes you may need to reference or add supplementary notes to your sentences.
We may use the ref or refun tag. Eg: Reference: <references/> |
Sometimes you may need to reference or add supplementary notes to your sentences. We may use the ref or refun tag. Eg: <br> There are XX numbers of people in the world.<ref>The source is quoted from ...</ref> <br> Reference: <references/> |
Section headings
Headings organize your writing into sections. The Wiki software can automatically generate a table of contents from them.
Subsection
Using more equals signs creates a subsection.
A smaller subsection
Don't skip levels, like from two to four equals signs.
Start with 2 equals signs not 1 because 1 creates H1 tags which should be reserved for page title. </pre> |- |
- Unordered lists are easy to do:
- Start every line with a star.
- More stars indicate a deeper level.
- Start every line with a star.
- A newline
- in a list
marks the end of the list.
- Of course you can start again.
* ''Unordered lists'' are easy to do: ** Start every line with a star. *** More stars indicate a deeper level. * A newline * in a list marks the end of the list. * Of course you can start again.
|- |
- Numbered lists are:
- Very organized
- Easy to follow
A newline marks the end of the list.
- New numbering starts with 1.
# ''Numbered lists'' are also good: ## Very organized ## Easy to follow A newline marks the end of the list. # New numbering starts with 1.
|- | Another kind of list is a definition list:
- Word
- Definition of the word
- Here is a longer phrase that needs a definition
- Phrase defined
- A word
- Which has a definition
- Also a second one
- And even a third
Another kind of list is a ''definition list'': ; Word : Definition of the word ; Here is a longer phrase that needs a definition : Phrase defined ; A word : Which has a definition : Also a second one : And even a third
|- |
- You can even do mixed lists
- and nest them
- inside each other
- or break lines
in lists.
- definition lists
- can be
- nested too
- or break lines
* You can even do mixed lists *# and nest them *# inside each other *#* or break lines<br>in lists. *#; definition lists *#: can be *#;; nested too
|- |
- A colon (:) indents a line or paragraph.
A newline after that starts a new paragraph.
This is often used for discussion on talk pages.
- We use 1 colon to indent once.
- We use 2 colons to indent twice.
- We use 3 colons to indent 3 times, and so on.
- We use 2 colons to indent twice.
: A colon (:) indents a line or paragraph. A newline after that starts a new paragraph. <br> This is often used for discussion on talk pages. : We use 1 colon to indent once. :: We use 2 colons to indent twice. ::: We use 3 colons to indent 3 times, and so on.
|- | You can make horizontal dividing lines (----) to separate text.
But you should usually use sections instead, so that they go in the table of contents.
|You can make horizontal dividing lines (----) to separate text. ---- But you should usually use sections instead, so that they go in the table of contents.
|-
|Sometimes you may need to reference or add supplementary notes to your sentences.
We may use the ref or refun tag. Eg:
There are XX numbers of people in the world.<ref>The source is quoted from ...</ref>
Reference: <references/>
For details, see Wikipedia:Footnotes & Help:Footnotes.
|Sometimes you may need to reference or add supplementary notes to your sentences. We may use the ref or refun tag. Eg: <br> There are XX numbers of people in the world.<ref>The source is quoted from ...</ref> <br> Reference: <references/> For details, see Wikipedia:Footnotes & Help:Footnotes.
Image insertion
You can find a complete tutorial here.