Learn Editor: Update virtual-machine-scale-sets-use-availability-zones.md

Author: fitzgeraldsteele

articles/virtual-machine-scale-sets/virtual-machine-scale-sets-use-availability-zones.md

@@ -178,11 +178,12 @@ You must register for four feature flags on your subscription:
 
 ### [Azure CLI](#tab/cli-1)
 
+
 ```azurecli
 az feature register --namespace Microsoft.Compute --name VmssAllowRegionalToZonalMigration
 az feature register --namespace Microsoft.Compute --name VmssAllowExpansionOfAvailabilityZones
-az feature register --namespace Microsoft.Compute --name EnableVmssFlexExpansionOfAvailabilityZones
-az feature register --namespace Microsoft.Compute --name EnableVmssFlexRegionalToZonalMigration
+az feature register --namespace Microsoft.Compute --name VmssFlexAllowExpansionOfAvailabilityZones
+az feature register --namespace Microsoft.Compute --name VmssFlexAllowRegionalToZonalMigration
 ```
 
 You can check the registration status of each feature by using:
@@ -193,11 +194,12 @@ az feature show --namespace Microsoft.Compute --name \<feature-name\>
 
 ### [Azure PowerShell](#tab/powershell-1)
 
+
 ```powershell
 Register-AzProviderPreviewFeature -Name VmssAllowRegionalToZonalMigration -ProviderNamespace Microsoft.Compute
 Register-AzProviderPreviewFeature -Name VmssAllowExpansionOfAvailabilityZones -ProviderNamespace Microsoft.Compute
-Register-AzProviderPreviewFeature -Name EnableVmssFlexExpansionOfAvailabilityZones -ProviderNamespace Microsoft.Compute
-Register-AzProviderPreviewFeature -Name EnableVmssFlexRegionalToZonalMigration -ProviderNamespace Microsoft.Compute
+Register-AzProviderPreviewFeature -Name VmssFlexAllowExpansionOfAvailabilityZones -ProviderNamespace Microsoft.Compute
+Register-AzProviderPreviewFeature -Name VmssFlexAllowRegionalToZonalMigration -ProviderNamespace Microsoft.Compute
 ```
 
 You can check the registration status of each feature by using:
@@ -212,6 +214,7 @@ You can update the scale set to scale out instances to one or more additional av
 
 > [!IMPORTANT]
 > When you expand the scale set to additional zones, the original instances are not migrated or changed. When you scale out, new instances will be created and spread evenly across the selected availability zones. When you scale in the scale set, any regional instances will be priorized for removal first. After that, instances will be removed based on the [scale in policy](virtual-machine-scale-sets-scale-in-policy.md). 
+
 Expanding to a zonal scale set is done in 3 steps:
 
 1. Prepare for zonal expansion
@@ -322,3 +325,24 @@ Now that you have created a scale set in an Availability Zone, you can learn how
 
 
 
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