(DOCSP-33837) Clarifies OM rolling restart definition (#5252) (#5265)

Author: sarahsimpers

source/includes/steps-restart-deployment.yaml

@@ -20,8 +20,10 @@ content: |
   .. note::
      If you are restarting a running deployment,  
      |mms| restarts the deployment after the next publish.
-     Deployments with multiple members should remain available as |mms| 
-     performs a :term:`rolling restart`.
+     Deployments with multiple members remain available as |mms| 
+     performs a rolling restart. During an |mms| rolling restart,
+     several processes can go offline at once, but the majority of
+     processes remain available.
 
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 stepnum: 3