Update Get-AzP2sVpnGatewayDetailedConnectionHealth.md (#16329)

Author: wtnlee

src/Network/Network/help/Get-AzP2sVpnGatewayDetailedConnectionHealth.md

@@ -34,6 +34,8 @@ Get-AzP2sVpnGatewayDetailedConnectionHealth -ResourceId <String> -OutputBlobSasU
 ## DESCRIPTION
 The **Get-AzP2sVpnGatewayDetailedConnectionHealth** cmdlet enables you to get the detailed information of current point to site connections from P2SVpnGateway. Customer needs to pass SAS url where we can put this detailed health information.
 
+Please note that the SAS url provided should be one for the **blob** (file) that has been created in the storage account and **not** the container. Please use the **New-AzStorageBlobSASToken** Powershell command and not the **New-AzStorageContainerSASToken**. You will also need to allow read and write permissions on your SaSURl. 
+
 ## EXAMPLES
 
 ### Example 1