Please copy {{SPW}} from w:c:templates:Template:SPW to Template:SPW!
:This template is used to insert documentation on template pages.
:Type <noinclude>{{documentation}}</noinclude> at the end of the template page.
==General usage==
===On the Template page===
<br />Template code<includeonly>Any categories to be inserted into articles by the template</includeonly><noinclude><br />{{documentation}}</noinclude><br />
===On the Template/doc page===
:See also Template:Documentation/preload
<br />{{SPW|name={{subst:BASEPAGENAME}}}}<br />;Description<br />:This template is used to do something.<br />;Syntax<br />:Type <code>{{t|templatename}}</code> somewhere.<br />;Sample output<br />:<code><nowiki>{{templatename|foo}}</nowiki></code> gives...<br />:{{templatename|foo}}

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

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 {{T}}.