[DOCS] Update README; add default vars

Change-Id: I3fd3c9de5159a486f5bca201e5adfad1df1a743c

README.rst

@@ -2,8 +2,14 @@
 OpenStack-Ansible openrc file
 =============================
 
-:tags: openstack, openrc, cloud, ansible
-:category: \*nix
-
 This Ansible role creates the configuration files used by various
 OpenStack CLI tools.
+
+Documentation for the project can be found at:
+  http://docs.openstack.org/developer/openstack-ansible-openstack_openrc/
+
+The project home is at:
+  http://launchpad.net/openstack-ansible
+
+:tags: openstack, openrc, cloud, ansible
+:category: \*nix

doc/source/index.rst

@@ -8,6 +8,13 @@ OpenStack CLI tools. For more information about these tools, see the
 
 .. _OpenStack CLI Reference: http://docs.openstack.org/cli-reference/overview.html
 
+Default variables
+~~~~~~~~~~~~~~~~~
+
+.. literalinclude:: ../../defaults/main.yml
+   :language: yaml
+   :start-after: under the License.
+
 Required variables
 ~~~~~~~~~~~~~~~~~~