adding sentinel metadata

Author: batamig

articles/defender-for-iot/organizations/iot-advanced-threat-monitoring.md

@@ -3,6 +3,7 @@ title: Investigate and detect threats for IoT devices | Microsoft Docs
 description: This tutorial describes how to use the Microsoft Sentinel data connector and solution for Microsoft Defender for IoT to secure your entire  environment. Detect and respond to threats, including multistage attacks that may cross IT and OT boundaries.
 ms.topic: tutorial
 ms.date: 09/18/2022
+ms.subservice: sentinel-integration
 ---
 
 # Tutorial: Investigate and detect threats for IoT devices

articles/defender-for-iot/organizations/iot-solution.md

@@ -4,6 +4,7 @@ description: This tutorial describes how to integrate Microsoft Sentinel and Mic
 ms.topic: tutorial
 ms.date: 06/20/2022
 ms.custom: enterprise-iot
+ms.subservice: sentinel-integration
 ---
 
 # Tutorial: Connect Microsoft Defender for IoT with Microsoft Sentinel

articles/defender-for-iot/organizations/release-notes-sentinel.md

@@ -3,6 +3,7 @@ title: Microsoft Defender for IoT solution versions in Microsoft Sentinel
 description: Learn about the updates available in each version of the Microsoft Defender for IoT solution, available from the Microsoft Sentinel content hub.
 ms.date: 09/22/2022
 ms.topic: release-notes
+ms.subservice: sentinel-integration
 ---
 
 # Microsoft Defender for IoT solution versions in Microsoft Sentinel