(AzureCXP) fixes MicrosoftDocs/azure-docs#372330

Updated line number 
from
Start-VMPublicIPUpgrade -RecoverFromFile ./PublicIPUpgrade_Recovery_2020-01-01-00-00.csv -VMName myVM -VMResourceGroup -rg-myrg
To
Start-VMPublicIPUpgrade -RecoverFromFile ./PublicIPUpgrade_Recovery_2020-01-01-00-00.csv -VMName myVM -VMResourceGroup -rg-myrg

Author: ManoharLakkoju-MSFT

articles/virtual-network/ip-services/public-ip-upgrade-vm.md

@@ -86,7 +86,7 @@ If a migration fails due to a transient issue, such as a network outage or clien
 To recover from a failed upgrade, pass the recovery log file path to the script with the `-recoverFromFile` parameter and identify the VM to recover with the `-VMName` and `-VMResourceGroup` or `-VMResourceID` parameters, as shown in this example.
 
 ```powershell
-    Start-VMPublicIPUpgrade -RecoverFromFile ./PublicIPUpgrade_Recovery_2020-01-01-00-00.csv -VMName myVM -VMResourceGroup -rg-myrg
+    Start-VMPublicIPUpgrade -RecoverFromFile ./PublicIPUpgrade_Recovery_2020-01-01-00-00.csv -VMName myVM -VMResourceGroup rg-myrg
 ```
 
 ## Common questions