Update blob-inventory-how-to.md

We have seen few instance wherein customer got confused and thought the container being selected as the source for report. So just adding some clarification to the documentation as to the container selected represent as the destination container.

Author: Amrinder-Singh29

articles/storage/blobs/blob-inventory-how-to.md

@@ -38,7 +38,7 @@ Enable blob inventory reports by adding a policy with one or more rules to your
 
 5. In the **Add a rule** page, name your new rule.
 
-6. Choose a container.
+6. Choose a container. This container act as the target location for generation of reports.
 
 7. Under **Object type to inventory**, choose whether to create a report for blobs or containers.