Documentation2

{{{top|}}} {{Codeblock|title=|name=template|{{Template source|{{BASEPAGENAME}}}}}} {{Templates Nav}}

{{Documentation header|documentation = {{#ifexist: Template:{{BASEPAGENAME}}/doc | Template:{{BASEPAGENAME}}/doc }} }} <!--
-->{{#ifexist: Template:{{BASEPAGENAME}}/styles.css | {{TemplateStyles}} }} {{#if: {{{notoc|}}} || <div class="toc-container" style="float:right; margin-left:1rem; margin-bottom:.25rem; clear:right;">__TOC__</div> }}
{{#ifexist: Template:{{BASEPAGENAME}}/doc | {{Template:{{BASEPAGENAME}}/doc}} }}
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Template documentation

Documentation can be written on a /doc subpage, which will automatically be transcluded.

The /doc subpage should start at 3rd level headings

Because the template itself uses a 2nd level heading for the Template documentation top header.

If it has enough headings

The TOC will work properly and not be duplicated

Right??

It needs several headings for a TOC to trigger.

Like

this. Documentation can also be written on-page