Updates creating a private cluster with no internet access

Author: Steven Smith

modules/installation-azure-user-defined-routing.adoc

@@ -74,8 +74,7 @@ endpoints.
 [discrete]
 == Private cluster with no internet access
 
-You can have VNets with no access to the internet if your cluster has access to
-the following:
+You can install a private network that restricts all access to the internet, except the Azure API. This is accomplished by mirroring the release image registry locally. Your cluster must have access to the following: 
 
 * An internal registry mirror that allows for pulling container images
 * Access to Azure APIs