create afd classic retirement include

Author: duongau

includes/front-door-classic-retirement.md

@@ -0,0 +1,13 @@
+---
+ title: Azure Front Door (classic) retirement notice
+ description: include file
+ services: front-door
+ author: duongau
+ ms.service: front-door
+ ms.topic: include
+ ms.date: 03/18/2024
+ ms.author: duau
+ ms.custom: include file
+---
+> [!IMPORTANT]
+> Azure Front Door (classic) will be retired on **March 31, 2027**. To avoid any service disruption, it is important that you migrate your Azure Front Door (classic) profiles to Azure Front Door Standard or Premium tier by March 2027. For detailed information, see [**Azure Front Door (classic) retirement**]().