Update monitor-virtual-machine-changes-logic-app.md

Fixing ms.service value

Author: JasonWHowell

articles/event-grid/monitor-virtual-machine-changes-logic-app.md

@@ -1,8 +1,7 @@
 ---
 title: Monitor virtual machines changes with Azure Event Grid
 description: Check for changes in virtual machines (VMs) by using Azure Event Grid and Azure Logic Apps.
-services: logic-apps, event-grid
-ms.service: logic-apps
+ms.service: azure-logic-apps
 ms.suite: integration
 author: ecfan
 ms.author: estfan