fix inconsistent placeholder

Author: yucwan

articles/spring-cloud/spring-cloud-quickstart-launch-app-cli.md

@@ -69,15 +69,15 @@ az extension add --name spring-cloud
 4. Open an Azure CLI window and run the following commands to provision an instance of Azure Spring Cloud.
 
     ```azurecli
-        az spring-cloud create -n <service name> -g <resource group name>
+        az spring-cloud create -n <service instance name> -g <resource group name>
     ```
 
     The service instance will take around five minutes to deploy.
 
 5. Set your default resource group name and cluster name using the following commands:
 
     ```azurecli
-        az configure --defaults group=<service group name>
+        az configure --defaults group=<resource group name>
         az configure --defaults spring-cloud=<service instance name>
     ```
 
@@ -89,7 +89,7 @@ az extension add --name spring-cloud
 Update your config-server with the location of the git repository for our project:
 
 ```git
-az spring-cloud config-server git set -n <your-service-name> --uri https://github.com/Azure-Samples/piggymetrics-config
+az spring-cloud config-server git set -n <service instance name> --uri https://github.com/Azure-Samples/piggymetrics-config
 ```
 
 > [!div class="nextstepaction"]