Update src/main/pages/che-7/installation-guide/proc_configuring-names…

…pace-strategies.adoc

Co-Authored-By: Robert Krátký <rkratky@redhat.com>

src/main/pages/che-7/installation-guide/proc_configuring-namespace-strategies.adoc

@@ -16,7 +16,12 @@ The strategy isolates each user in their own namespace.
 To use the strategy, set the `CHE_INFRA_KUBERNETES_NAMESPACE` variable on Kubernetes or the `CHE_INFRA_OPENSHIFT_PROJECT` variable on OpenShift. The value must contain one or more user identifiers. Currently supported identifiers are `_<username>_` and `_<userid>_`.
 
 .Example
-To have namespaces named like `che-ws-user1`, `che-ws-user2`, `…` set `CHE_INFRA_KUBERNETES_NAMESPACE=che-ws-<username>`.
+To assign namespace names composed of a `che-ws` prefix and individual usernames (`che-ws-user1`, `che-ws-user2`), set:
+
+[subs="+quotes"]
+----
+CHE_INFRA_KUBERNETES_NAMESPACE=che-ws-__<username>__
+----
 
 [IMPORTANT]
 ====