evennia/docs/source/_templates/sourcelink.html

{#
Page source link

#}
{%- if show_source and has_source and sourcename %}
  <div role="note" aria-label="source link">
    <!--h3>{{ _('This Page') }}</h3-->
    <ul class="this-page-menu">
      <li><a href="{{ pathto('_sources/' + sourcename, true)|e }}"
            rel="nofollow">{{ _('Show Page Source') }}</a></li>
    </ul>
   </div>
{%- endif %}