initial new wording for attributes (Lenny and Tom)

documentation/staging/content/userguide/managing-domains/domain-resource.md

@@ -196,8 +196,30 @@ Elements related to specifying and overriding WebLogic domain configuration:
 
 * These elements are under `configuration.istio`.
 
-  * `enabled`: True, if this domain is deployed under an Istio service mesh. Defaults to true when the `istio` field is specified.
-  * `readinessPort`: The operator will create a WebLogic network access point with this port that will then be exposed from the container running the WebLogic Server instance. The readiness probe will use this network access point to verify that the server instance is ready for application traffic. Defaults to 8888.
+  * `enabled`: True, if this domain is deployed under an Istio service mesh.
+    Defaults to true when the `istio` field is specified.
+  * `readinessPort`:
+    The operator will create WebLogic network access points
+    with this port on each WebLogic Server.
+    The readiness probe on each pod will use these
+    network access points
+    to verify that the pod is ready
+    for application traffic. Defaults to 8888.
+  * `replicationChannelPort`:
+    The operator will create a `T3` protocol 
+    WebLogic network access point
+    on each WebLogic server that is part of a cluster with this port 
+    to handle EJB and servlet session state replication traffic
+    between servers. This setting is ignored for clusters 
+    where the WebLogic cluster configuration already 
+    defines a `replication-channel` attribute. Defaults to 4564.
+  * `localhostBindingsEnabled`:
+    When `true` the operator creates a WebLogic network access point
+    with a `localhost` binding for each existing channel and
+    protocol. This must be set to true when using Istio
+    versions prior to 1.10 and must be set to false for
+    version 1.10 and later. Defaults to true.
+
 
 Elements related to Kubernetes Pod and Service generation: