fix link

Author: aczechowski

memdocs/configmgr/core/clients/manage/cmg/set-up-checklist.md

@@ -2,7 +2,7 @@
 title: Set up checklist for CMG
 titleSuffix: Configuration Manager
 description: Get an overview of the cloud management gateway (CMG) setup process and make sure you have all prerequisites ready to start.
-ms.date: 09/09/2021
+ms.date: 03/08/2022
 ms.prod: configuration-manager
 ms.technology: configmgr-client
 ms.topic: overview
@@ -70,7 +70,7 @@ Use the following checklist to make sure you have the necessary information and
 
 - At least one existing site system server on which you plan to add the **CMG connection point** role.
 
-- Check the internet access requirements to make sure each required service can be reached. https://docs.microsoft.com/en-us/mem/configmgr/core/plan-design/network/internet-endpoints
+- Review the [internet access requirements](data-flow.md#internet-access-requirements) to make sure each required services can be reached.
 
 You'll set up other prerequisite components during the next steps in the process.