Update TOC.yml

added link to developer intro due to conflict

Author: eoinshanley-microsoft

articles/active-directory/managed-identities-azure-resources/TOC.yml

@@ -56,6 +56,8 @@
     href: how-to-view-managed-identity-activity.md
 - name: Concepts
   items:
+    - name: Developer introduction and guidelines
+      href: overview-for-developers.md  
     - name: Managed identities and Azure VMs
       href: how-managed-identities-work-vm.md
     - name: Best practice recommendations