Edits per feedback

Author: ecfan

articles/jenkins/tutorial-jenkins-deploy-web-app-azure-app-service.md

@@ -242,7 +242,7 @@ can deploy to Azure without using your own credentials.
    For example, use the service principal ID you created earlier.
 
       ```text
-      AZURE_CRED_ID=yourAzureServicePrincipal-ID
+      AZURE_CRED_ID=yourAzureServicePrincipalName
       RES_GROUP=yourWebAppAzureResourceGroupName
       WEB_APP=yourWebAppName
       ```