Clean up common schema articles

AbbyMSFT · AbbyMSFT · commit 2ed88b8b5080 · 2022-12-26T17:34:12.000+02:00
diff --git a/articles/azure-monitor/alerts/alerts-common-schema.md b/articles/azure-monitor/alerts/alerts-common-schema.md
@@ -2,7 +2,7 @@
 title: Common alert schema for Azure Monitor alerts
 description: Understand the common alert schema, why you should use it, and how to enable it.
 ms.topic: conceptual
-ms.date: 03/14/2019
+ms.date: 12/22/2022
 ms.reviewer: ofmanor
 ---
 
