Handle my_ip option

Configure the my_ip option to bind storage traffic on chosen
interface/network, otherwise by default cinder-volume selects
the first available one.

Change-Id: I3927a875b1f446cb6986bc4b74a2288c7a30f198
diff --git a/README.rst b/README.rst
index 6f74af9..2afa980 100644
--- a/README.rst
+++ b/README.rst
@@ -77,7 +77,8 @@
         cinder_internal_tenant_user_id: f46924c112a14c80ab0a24a613d95eef
         cinder_internal_tenant_project_id: b7455b8974bb4064ad247c8f375eae6c
         default_volume_type: 7k2SaS
-        nable_force_upload: true
+        enable_force_upload: true
+        my_ip: 192.168.0.254
         database:
           engine: mysql
           host: 127.0.0.1