Update index and toc

Author: hahahahahaiyiwen

articles/azure-app-configuration/TOC.yml

@@ -49,6 +49,9 @@
           href: quickstart-container-apps.md
     - name: Deployment
       items:
+        - name: Overview
+          href: quickstart-deployment-overview.md
+          displayName: ARM, Resource Manager, Template
         - name: Bicep
           href: quickstart-bicep.md
           displayName: ARM, Resource Manager, Template

articles/azure-app-configuration/index.yml

@@ -80,8 +80,8 @@ landingContent:
           url: quickstart-java-spring-app.md
         - text: Code a Python app
           url: quickstart-python.md
-        - text: Azure Resource Manager template
-          url: quickstart-resource-manager.md       
+        - text: Azure Resource Manager deployment
+          url: quickstart-deployment-overview.md       
         - text: Azure Container Apps
           url: quickstart-container-apps.md
       - linkListType: tutorial