Include reference to monitoring docs

Adding references to docs to configure and disable Azure Monitor for Containers for ARO clusters

Author: Sakthi Vetrivel

articles/openshift/toc.yml

@@ -39,7 +39,16 @@
     href: howto-deploy-prometheus.md
   - name: Manage projects in an Azure Red Hat OpenShift cluster
     href: howto-manage-projects.md
-
+  - name: Monitoring and logging
+    items: 
+    - name: Azure Monitor for containers (preview)
+      items:
+      - name: Configure Azure Monitor for containers
+        href: ../azure-monitor/insights/container-insights-azure-redhat-setup.md
+        maintainContext: true
+      - name: Disable Azure Monitor for containers
+        href: ../azure-monitor/insights/container-insights-optout-openshift.md
+        maintainContext: true
 - name: Reference
   items:
   - name: Azure Red Hat OpenShift CLI