Merge pull request #294580 from wmgries/rev-pv2-regions

Add brazilsouth, brazilsoutheast, southcentralus, and northcentralus.

Author: prmerger-automator[bot]

articles/storage/files/understanding-billing.md

@@ -125,6 +125,10 @@ Currently, these SKUs are generally available in a limited subset of regions:
 - Canada East
 - UAE Central
 - UAE North
+- Brazil South
+- Brazil Southeast
+- South Central US
+- North Central US
 
 ### Provisioned v2 provisioning detail
 When you create a provisioned v2 file share, you specify the provisioned capacity for the file share in terms of storage, IOPS, and throughput. File shares are limited based on the following attributes: