Update quickstart-provision-standard-consumption-service-instance.md

Add command to create a resource group.

Author: majguo

articles/spring-apps/quickstart-provision-standard-consumption-service-instance.md

@@ -124,6 +124,14 @@ You can create the Azure Container Apps environment in one of two ways:
    AZURE_CONTAINER_APPS_ENVIRONMENT="<Azure-Container-Apps-environment-name>"
    ```
 
+1. Use the following command to create a resrouce group:
+
+   ```azurecli
+   az group create \
+       --name $RESOURCE_GROUP \
+       --location $LOCATION 
+   ```
+
 1. Use the following command to create the Azure Container Apps environment:
 
    ```azurecli