Update index.yml

Author: vimeht

articles/iot-hub-device-update/index.yml

@@ -33,6 +33,8 @@ landingContent:
           url: device-update-ubuntu-agent.md
         - text: Device update for Azure RTOS
           url: device-update-azure-real-time-operating-system.md
+        - text: Device Update for Azure Real Time Operating System
+          url: device-update-azure-real-time-operating-system.md
   - title: Prep your devices with the agent
     linkLists:
     - linkListType: concept
@@ -70,4 +72,4 @@ landingContent:
       - text: Create device groups
         url: create-update-group.md
       - text: Deploy a device update
-        url: deploy-update.md
+        url: deploy-update.md