Add links to bugs and developer's guide

This is so that people can contribute bugs/feature requests, or be
able to submit changes to the documentation.

Also, due to strangeness in the zuul guide merging process, added
a guid in enable-merge to get it to merge the commit.

Change-Id: Id94f89779cc8ec672ef351f84efa04e98155663e

README.rst

@@ -18,3 +18,15 @@ To build the guide, execute the following command::
 After running ``tox``, the documentation will be available for viewing in HTML
 format in the ``deploy-guide/build/html`` directory. View these new documents
 in your favorite web browser.
+
+
+Submitting changes to this documentation
+----------------------------------------
+
+If you wish to raise an issue against the documentation, please do so at
+`<https://bugs.launchpad.net/charm-deployment-guide>`__.
+
+Submissions to this source are controlled via the OpenStack gerrit system at
+`<https://review.openstack.org>`__.  If you wish to submit content then please
+see `<https://docs.openstack.org/infra/manual/developers.html>`__ for details
+on how to submit changes.

deploy-guide/source/enable-merge

@@ -0,0 +1 @@
+799366ee-cd0f-49e3-bd41-bd3198ede5dc