fix "Powershell"

Author: American-Dipper

articles/storage/blobs/soft-delete-enable.md

@@ -56,7 +56,7 @@ Once you undelete a blob's snapshots, you can click **Promote** to copy a snapsh
 
 ![](media/soft-delete-enable/storage-blob-soft-delete-portal-promote-snapshot.png)
 
-# [Powershell](#tab/azure-powershell)
+# [PowerShell](#tab/azure-powershell)
 
 [!INCLUDE [updated-for-az](../../../includes/updated-for-az.md)]