[DOCS] move example playbook to separate file

Change-Id: I0243088c36a24be9c989602d98a988f63256924b

README.rst

@@ -1,14 +1,9 @@
-os_tempest role
-###############
-:tags: openstack, cloud, ansible, os_tempest
-:category: \*nix
+=================================
+OpenStack-Ansible os_tempest role
+=================================
 
-os_tempest Role
+Documentation for the project can be found at:
+  http://docs.openstack.org/developer/openstack-ansible-os_tempest
 
-.. code-block:: yaml
-
-    - name: os_tempest role
-      hosts: "hosts"
-      user: root
-      roles:
-        - { role: "os_tempest" }
+The project home is at:
+  http://launchpad.net/openstack-ansible

doc/source/index.rst

@@ -1,12 +1,34 @@
-os_tempest Docs
-===============
+=================================
+OpenStack-Ansible os_tempest role
+=================================
 
-Ansible role to deploy OpenStack Tempest
+This is the Ansible role to deploy OpenStack Tempest.
 
-Basic Role Example
-^^^^^^^^^^^^^^^^^^
+:tags: openstack, cloud, ansible, os_tempest
+:category: \*nix
+
+Basic role example
+~~~~~~~~~~~~~~~~~~
 
 .. code-block:: yaml
 
     - role: "os_tempest"
       ROLE_VARS...
+
+Default variables
+~~~~~~~~~~~~~~~~~
+
+.. literalinclude:: ../../defaults/main.yml
+   :language: yaml
+   :start-after: under the License.
+
+Required variables
+~~~~~~~~~~~~~~~~~~
+
+None
+
+Example playbook
+~~~~~~~~~~~~~~~~
+
+.. literalinclude:: ../../examples/playbook.yml
+   :language: yaml

examples/playbook.yml

@@ -0,0 +1,5 @@
+- name: os_tempest role
+  hosts: "hosts"
+  user: root
+  roles:
+    - { role: "os_tempest" }