Merge pull request #127935 from hanagapal/patch-4

Update South US to South Central US in zonal placement

Author: ktoliver

articles/storage/files/zonal-placement.md

@@ -44,7 +44,7 @@ Zonal placement is supported for premium storage accounts with LRS redundancy in
 - Qatar Central
 - Poland Central
 - South Africa North
-- South US
+- South Central US
 - Spain Central
 - West US 2
 - West US 3