Update 8.2 AI security capabilities.md

Author: banreyms

8.2 AI security capabilities.md

@@ -1,6 +1,6 @@
 # AI security capabilities
 
-[![Watch the video](images/8-1_placeholder.png)](https://learn-video.azurefd.net/vod/player?id=e0a6f844-d884-4f76-99bd-4ce9f7f73d22)
+[![Watch the video](images/8-2_placeholder.png)](https://learn-video.azurefd.net/vod/player?id=e0a6f844-d884-4f76-99bd-4ce9f7f73d22)
 
 ## What tools and capabilities do we have to secure AI systems currently?