DOCSP-27803 clarified clusterRoleBinding bullet (#1213)

* clarified clusterRoleBinding bullet

Author: kyuan-mongodb

source/tutorial/set-scope-k8s-operator.txt

@@ -78,9 +78,10 @@ deployed:
      :github:`operator-roles.yaml </mongodb/mongodb-enterprise-kubernetes/blob/master/helm_chart/templates/operator-roles.yaml>`
      example. This is a cluster-scoped resource.
 
-   - A |k8s-crb| on each namespace to watch. This ``clusterRoleBinding``
-     will bind the ``clusterRole`` you created with the ServiceAccount
-     the |k8s-op-short| is using on the namespace where you install it.
+   - Create a |k8s-crb| to link |k8s-cr| with ServiceAccount. This
+     ``clusterRoleBinding`` will bind the ``clusterRole`` that you
+     created  with the ServiceAccount that the |k8s-op-short| is using
+     on the namespace where you install it.
 
 2. Include the |k8s-cr| and |k8s-crb|
    in the default configuration files that you apply during the