Rename layout.html to page.html. Fix fedora-infra#130

See readthedocs/readthedocs.org#152

Author: axilleas

doc/_templates/layout.html

@@ -0,0 +1,9 @@
+{% extends "!page.html" %}
+{% block footer -%}
+{{ super() }}
+<a href="http://github.com/fedora-infra/fedmsg">
+  <img style="position: absolute; top: 0; right: 0; border: 0;"
+  src="https://s3.amazonaws.com/github/ribbons/forkme_right_darkblue_121621.png"
+  alt="Fork me on GitHub">
+</a>
+{%- endblock %}