cli tweak

prompt for region name

Author: christiankuhtz

articles/virtual-network/quickstart-create-nat-gateway-template.md

@@ -73,9 +73,9 @@ Nine Azure resources are defined in the template:
 **Azure CLI**
 
 ```azurecli-interactive
-resourceGroupName="myResourceGroupNAT" &&
-templateUri="https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/101-nat-gateway-1-vm/azuredeploy.json" &&
-location="eastus2"
+read -p "Enter the location (i.e. centralus): " location
+resourceGroupName="myResourceGroupNAT"
+templateUri="https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/101-nat-gateway-1-vm/azuredeploy.json" 
 
 az group create \
 --name $resourceGroupName \