Update toc.yml

Author: guywi-ms

articles/azure-monitor/toc.yml

@@ -277,35 +277,35 @@ items:
               href: ../virtual-machines/extensions/diagnostics-windows.md?toc=/azure/azure-monitor/toc.json
             - name: Resource Manager template
               href: ../virtual-machines/extensions/diagnostics-template.md?toc=/azure/azure-monitor/toc.json
-        - name: Send to Azure Monitor Metrics
+          - name: Send to Azure Monitor Metrics
+            items:
+              - name: Virtual Machine
+                href: essentials/collect-custom-metrics-guestos-resource-manager-vm.md
+              - name: Virtual machine scale set
+                href: essentials/collect-custom-metrics-guestos-resource-manager-vmss.md
+              - name: VM classic
+                href: essentials/collect-custom-metrics-guestos-vm-classic.md
+              - name: Cloud service
+                href: essentials/collect-custom-metrics-guestos-vm-cloud-service-classic.md
+          - name: Send to Event Hubs
+            href: agents/diagnostics-extension-stream-event-hubs.md
+          - name: Send to Logs
+            href: agents/diagnostics-extension-logs.md
+          - name: Send to Application Insights
+            href: agents/diagnostics-extension-to-application-insights.md
+          - name: Version history
+            href: agents/diagnostics-extension-versions.md
+          - name: Troubleshooting
+            href: agents/diagnostics-extension-troubleshooting.md
+        - name: Linux
+          displayName: diagnostics extension
           items:
-            - name: Virtual Machine
-              href: essentials/collect-custom-metrics-guestos-resource-manager-vm.md
-            - name: Virtual machine scale set
-              href: essentials/collect-custom-metrics-guestos-resource-manager-vmss.md
-            - name: VM classic
-              href: essentials/collect-custom-metrics-guestos-vm-classic.md
-            - name: Cloud service
-              href: essentials/collect-custom-metrics-guestos-vm-cloud-service-classic.md
-        - name: Send to Event Hubs
-          href: agents/diagnostics-extension-stream-event-hubs.md
-        - name: Send to Logs
-          href: agents/diagnostics-extension-logs.md
-        - name: Send to Application Insights
-          href: agents/diagnostics-extension-to-application-insights.md
-        - name: Version history
-          href: agents/diagnostics-extension-versions.md
-        - name: Troubleshooting
-          href: agents/diagnostics-extension-troubleshooting.md
-      - name: Linux
-        displayName: diagnostics extension
-        items:
-          - name: Version 4.0
-            href: ../virtual-machines/extensions/diagnostics-linux.md?toc=/azure/azure-monitor/toc.json
-          - name: Version 3.0
-            href: ../virtual-machines/extensions/diagnostics-linux-v3.md?toc=/azure/azure-monitor/toc.json
-          - name: Collect metrics with Telegraf
-            href: essentials/collect-custom-metrics-linux-telegraf.md
+            - name: Version 4.0
+              href: ../virtual-machines/extensions/diagnostics-linux.md?toc=/azure/azure-monitor/toc.json
+            - name: Version 3.0
+              href: ../virtual-machines/extensions/diagnostics-linux-v3.md?toc=/azure/azure-monitor/toc.json
+            - name: Collect metrics with Telegraf
+              href: essentials/collect-custom-metrics-linux-telegraf.md
     - name: Troubleshoot
       items:
       - name: Linux VM