add support for kubernetes vrouter

Change-Id: I073e56db05b4f4f0dce0386e58c661507b351008
diff --git a/README.rst b/README.rst
index 017b3a9..f414d29 100644
--- a/README.rst
+++ b/README.rst
@@ -588,6 +588,20 @@
           password: none
           token: none
         ...
+
+Kubernetes vrouter nodes
+------------------------
+
+Vrouter configuration on a kubernetes node(s)
+
+.. code-block:: yaml
+
+    opencontrail:
+      ...
+      compute:
+        engine: kubernetes
+      ...
+
 Usage
 =====