fix ms.author

Author: b-ahibbard

articles/azure-netapp-files/azure-netapp-files-understand-storage-hierarchy.md

@@ -13,7 +13,7 @@ ms.workload: storage
 ms.tgt_pltfrm: na
 ms.topic: overview
 ms.date: 02/21/2023
-ms.author: anfdoc
+ms.author: anfdocs
 ---
 # Storage hierarchy of Azure NetApp Files