To use, create a sub-page from the template called doc, put {{doc/start}} at the start of your documentation, and {{doc/end}} at the end.
Go back to your main template page and put <noinclude>{{/doc}}</noinclude> on a newline after the end of the template. /doc pages will automatically be added to Category:Documentation templates.
If your main template page has floating content and you would like to stop it going over the documentation, put {{doc/start}} instead of {{doc/start}} on your documentation page.
This is also useful for templates not using <includeonly>, as it will put some space between the template and the documentation box.
If a template has no documentation and you don't know how to use it, put {{doc/start}} (or if the template needs clear as well, {{doc/start}}) instead of {{doc/start}} on your documentation page.
The documentation's background will become red to make it more noticeable, and the page will be added to Category:Templates with no documentation.
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