put the feed into the right block

Author: nichtmax

source/_templates/layout.html

@@ -1,3 +1,5 @@
 {% extends "!layout.html" %}
 
-<link rel="alternate" type="application/rss+xml" title="Changelog feed" href="https://github.com/Uberspace/lab/commits/master.atom"/>
+{% block extrahead %} 
+  <link rel="alternate" type="application/rss+xml" title="Changelog feed" href="https://github.com/Uberspace/lab/commits/master.atom"/>
+{% endblock %}