[RabbitMQ] Parameterized message queue hosts to enable client-side HA.

Change-Id: I8fead4ffcc59e02660a45a4226375141bf73a6f0
diff --git a/README.rst b/README.rst
index 7e59df8..8ed186a 100644
--- a/README.rst
+++ b/README.rst
@@ -38,7 +38,6 @@
           user: openstack
           password: pwd
           virtual_host: '/openstack'
-          rabbit_ha_queues: true
         database:
           engine: mongodb
           host: 127.0.0.1
@@ -47,6 +46,25 @@
           user: ceilometer
           password: pwd
 
+Client-side RabbitMQ HA setup
+
+.. code-block:: yaml
+
+    ceilometer:
+      server:
+        ....
+        message_queue:
+          engine: rabbitmq
+          members:
+          - host: 127.0.0.1
+          - host: 127.0.0.1
+          - host: 127.0.0.1
+          user: openstack
+          password: pwd
+          virtual_host: '/openstack'
+       ....
+
+
 Ceilometer Graphite publisher
 
 .. code-block:: yaml