adding to overview

Author: batamig

articles/defender-for-iot/organizations/integrate-overview.md

@@ -16,6 +16,7 @@ The following table lists available integrations for Microsoft Defender for IoT,
 
 |Partner service  |Description | Learn more  |
 |---------|---------|---------|
+| **ArcSight** | Forward Defender for IoT alerts to ArcSight. | [Integrate ArcSight with Microsoft Defender for IoT](integrations/arcsight.md) |
 |**Aruba ClearPass**     | Share Defender for IoT data with ClearPass Security Exchange and update the ClearPass Policy Manager Endpoint Database with Defender for IoT data. | [Integrate ClearPass with Microsoft Defender for IoT](tutorial-clearpass.md)       |
 |**CyberArk**     | Send CyberArk PSM syslog data on remote sessions and verification failures to Defender for IoT for data correlation.   | [Integrate CyberArk with Microsoft Defender for IoT](tutorial-cyberark.md)       |
 |**Forescout**     | Automate actions in Forescout based on activity detected by Defender for IoT, and correlate Defender for IoT data with other *Forescout eyeExtended* modules that oversee monitoring, incident management, and device control.  | [Integrate Forescout with Microsoft Defender for IoT](tutorial-forescout.md)      |