simplify manual upgrade instructions

simplify upgrade instructions

Author: alt-key

articles/azure-arc/resource-bridge/upgrade.md

@@ -64,7 +64,7 @@ Arc resource bridge can be manually upgraded from the management machine. You mu
 
 Manual upgrade generally takes between 30-90 minutes, depending on network speeds. The upgrade command takes your Arc resource bridge to the next appliance version, which might not be the latest available appliance version. Multiple upgrades could be needed to reach a [supported version](#supported-versions). You can check your appliance version by checking the Azure resource of your Arc resource bridge.
 
-To manually upgrade your Arc resource bridge, make sure you're using the latest `az arcappliance` CLI extension by running the extension upgrade command from the management machine:
+Before upgrading, you'll need the latest Azure CLI extension for `arcappliance`:
 
 ```azurecli
 az extension add --upgrade --name arcappliance 
@@ -78,7 +78,7 @@ az arcappliance upgrade <private cloud> --config-file <file path to ARBname-appl
 
 For example, to upgrade a resource bridge on VMware, run: `az arcappliance upgrade vmware --config-file c:\contosoARB01-appliance.yaml`
 
-To upgrade a resource bridge on System Center Virtual Machine Manager (SCVMM), run: `az arcappliance upgrade scvmm --config-file c:\contosoARB01-appliance.yaml`
+To upgrade a resource bridge on SCVMM, run: `az arcappliance upgrade scvmm --config-file c:\contosoARB01-appliance.yaml`
 
 To upgrade a resource bridge on Azure Stack HCI, please transition to 23H2 and use the built-in upgrade management tool. More info available [here](/azure-stack/hci/update/about-updates-23h2).