Add midonet support for neutron.

Change-Id: Id0f071d8985dfd2680e26aeebff4caec8ac20a2c
diff --git a/README.rst b/README.rst
index eeafd73..8d87393 100644
--- a/README.rst
+++ b/README.rst
@@ -43,7 +43,6 @@
       server:
         enabled: true
         version: havana
-        plugin: ml2/contrail
         bind:
           address: 172.20.0.1
           port: 9696
@@ -84,6 +83,34 @@
           password: pass
         fwaas: false
 
+Neutron Server with OpenContrail
+
+.. code-block:: yaml
+
+    neutron:
+      server:
+        backend:
+          engine: contrail
+          host: contrail_discovery_host
+          port: 8082
+          user: admin
+          password: password
+          tenant: admin
+          token: token
+
+Neutron Server with Midonet
+
+.. code-block:: yaml
+
+    neutron:
+      server:
+        backend:
+          engine: midonet
+          host: midonet_api_host
+          port: 8181
+          user: admin
+          password: password
+
 Neutron bridge on the network node
 
 .. code-block:: yaml