(DOCSP-41917) reformatting part of text as a note

Author: carriecwk

source/tutorial/view-snapshots.txt

@@ -38,8 +38,10 @@ daily snapshot. An on-demand snapshot doesn't alter the existing snapshot
 schedule. You can view on-demand snapshots on your :guilabel:`View All Snapshots` 
 page.
 
-When you add or remove a shard from your cluster, |mms| initiates an on-demand 
-snapshot. 
+.. note::
+
+   When you add or remove a shard from your cluster, |mms| initiates an on-demand 
+   snapshot. 
 
 Take On-Demand Snapshots
 ------------------------