Changed Powershell to PowerShell

Author: megvanhuygen

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

@@ -189,7 +189,7 @@ Once you undelete a blob's snapshots, you can click **Promote** to copy a snapsh
 
 ![](media/storage-blob-soft-delete/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)]