Add video walkthrough for MTD integration (#883)

Added a video walkthrough for Mobile Threat Defense integration.

Author: jfdyer13

src/react/docs/workshop-guidance/devices/RMD_079.md

@@ -19,6 +19,11 @@ Mobile Threat Defense (MTD) integration with Microsoft Intune allows you to enha
    - Go to Tenant administration > Connectors and tokens > Mobile Threat Defense.
    - To set up integration with an MTD vendor, you need to be a Microsoft Enterprise Global administrator or have the Endpoint Security Manager built-in admin role for Intune.
 
+* * *
+### **Video Walkthrough**
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/mYCZ_f9svzM?si=kn6xhSxeNATrs8FM" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+
 **Mobile Threat Defense partners**
 
 Better Mobile