Updates from editor review

Author: adrianhall

articles/api-management/TOC.yml

@@ -378,7 +378,11 @@
       - name: Release notes
         href: https://aka.ms/apim/releases
       - name: Breaking changes
-        href: breaking-changes/overview.md
+        items:
+            - name: Overview
+              href: breaking-changes/overview.md
+            - name: Virtual Network Changes (March 2023)
+              href: breaking-changes/rp-source-ip-address-change-mar2023.md
       - name: Regional availability
         href: https://azure.microsoft.com/global-infrastructure/services/
       - name: Videos

articles/api-management/breaking-changes/overview.md

@@ -1,5 +1,5 @@
 ---
-title: Upcoming Breaking Changes | Microsoft Docs
+title: Upcoming Breaking Changes in Azure API Management | Microsoft Docs
 description: A list of all the upcoming breaking changes for Azure API Management
 services: api-management
 documentationcenter: ''

articles/api-management/breaking-changes/rp-source-ip-address-change-mar2023.md

@@ -1,5 +1,5 @@
 ---
-title: Resource Provider source IP address change (March 2023) | Microsoft Docs
+title: Azure API Management IP address change (March 2023) | Microsoft Docs
 description: Azure API Management is updating the source IP address of the resource provider in certain regions.  If your service is hosted in a Microsoft Azure Virtual Network, you may need to update network settings to continue managing your service.
 services: api-management
 documentationcenter: ''