To display code in syntax highlight

edit

As in Template:Documentation and Wikipedia:Template documentation.

{{syntaxhighlight|lang=wikitext|code=
<!-<nowiki/>-Last line of your template code-->{{Doc-code}}
}}

{{Doc-code}}

<!--Last line of your template code--><noinclude>
{{Documentation}}
<!-- Add categories to the /doc subpage and add interwikis to Wikidata -->
</noinclude>

{{Doc-code/sandbox}}

<!--Last line of your template code--><noinclude>
{{Documentation}}
<!-- Add categories to the /doc subpage -->
</noinclude>