add link

Author: ghogen

docs/containers/index.yml

@@ -56,6 +56,8 @@ landingContent:
             url: deploy-app-service.md
           - text: Deploy to Azure Container apps
             url: /azure/container-apps/deploy-visual-studio
+          - text: Deploy multicontainer app to Azure
+            url: deploy-multicontainer-azure-container-apps.md
           - text: Deploy to Docker Hub
             url: deploy-docker-hub.md
           - text: Deploy without a Dockerfile