requirements.txt

+mkdocs-rss-plugin

theme_customization/main.html

+{% extends "base.html" %}
+
+{% block extrahead %}
+  <!-- RSS Feed -->
+  <link rel="alternate" type="application/rss+xml" title="RSS feed of created content" href="{{ config.site_url }}feed_rss_created.xml">
+  <link rel="alternate" type="application/rss+xml" title="RSS feed of updated content" href="{{ config.site_url }}feed_rss_updated.xml">
+{% endblock %}
\ No newline at end of file

theme_customization/versions.html

+<div class="rst-versions" role="note" aria-label="{% trans %}Versions{% endtrans %}">
+  <span class="rst-current-version" data-toggle="rst-current-version">
+    <span>
+      <a href="{{ config.repo_url }}" class="icon icon-gitlab" style="color: #fcfcfc"> Source</a>
+    </span>
+  </span>
+</div>
\ No newline at end of file