Update pricing.md

Author: mbifeld

articles/cloud-shell/pricing.md

@@ -17,8 +17,7 @@ Cloud Shell requires a Microsoft Azure Files share.
 
 ## Storage cost
 
-Cloud Shell requires a new or existing Azure Files share to be mounted to persist files across
-sessions. Storage incurs regular costs. For pricing information, see [Azure Files Pricing][01].
+If you would like to persist files across sessions, Cloud Shell requires a new or existing Azure Files share to be mounted. Storage incurs regular costs. For pricing information, see [Azure Files Pricing][01].
 
 ## Network costs