Editing Template:Documentation/doc (section)

==General usage==
===On the Template page===
<pre><noinclude>{{documentation}}
</noinclude>Template code
<includeonly>Categories applied to pages using the template</includeonly>
</pre>

The line break before <code>&lt;includeonly&gt;</code> is included here for formatting purposes, and should not appear in actual templates. Depending on the template, it may be beneficial to move the <code>&lt;includeonly&gt;</code> to immediately after <code>&lt;/noinclude&gt;</code>, hiding the template from view.

OR

<pre>{{documentation}}
<onlyinclude>Template code</onlyinclude>
<includeonly>Categories applied to pages using the template</includeonly>
</pre>

===On the Template/doc page===
<pre>
;Description
:This template is used to do something.
;Syntax
:Type <code>{{t|templatename}}</code> somewhere.
;Sample output
:<code>&lt;nowiki&gt;{{templatename|foo}}&lt;/nowiki&gt;</code> gives...
:{{templatename|foo}}

<includeonly>Any categories for the template itself</includeonly>
<noinclude>[[Category:Template documentation|{{PAGENAME}}]]</noinclude>
</pre>

Use any or all of the above description/syntax/sample output sections. You may also want to add "see also" or further usage information sections.

Note that the above example also uses the [[Template:T]] and [[Template:T/piece]] templates.