converse-built/docs/source/_templates/layout.html

{# Import the theme's layout. #}
{% extends "!layout.html" %}

{# Custom CSS overrides #}
{% set css_files = css_files + ['_static/style.css'] %}
{% set script_files = script_files + ["../../analytics.js"] %}

{# Add some extra stuff before and use existing with 'super()' call. #}
{% block footer %}
    {{ super() }}
{% endblock %}