Update disk-storage-zrs-limitations.md

Adding more regions where feature is available.

Author: beavincent

includes/disk-storage-zrs-limitations.md

@@ -13,5 +13,5 @@
 ZRS for managed disks have the following restrictions:
 
 - Only supported with Premium SSD and Standard SSD managed disks. Not supported with Premium SSD v2 managed disks.
-- Currently available only in the Australia East, West Europe, North Europe, France Central, Qatar Central, and West US 2 regions.
+- Currently available only in the Southeast Asia, Australia East, West Europe, North Europe, France Central, Qatar Central, and West US 2 regions.