Remove old HTML headers

Change-Id: I39107df88aeb89d3364ad479d8c313b7a79b9440
diff --git a/doc/source/changes.rst b/doc/source/changes.rst
index ccd96e8..f4a326d 100644
--- a/doc/source/changes.rst
+++ b/doc/source/changes.rst
@@ -1,10 +1,6 @@
-`DevStack </>`__
-
--  `Overview <overview.html>`__
--  `Changes <changes.html>`__
--  `FAQ <faq.html>`__
--  `git.openstack.org <https://git.openstack.org/cgit/openstack-dev/devstack>`__
--  `Gerrit <https://review.openstack.org/#/q/status:open+project:openstack-dev/devstack,n,z>`__
+=======
+Changes
+=======
 
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