sig-security: add youtube video and forum link
@@ -3,7 +3,10 @@ Time: **9am PDT** (12pm EDT, 5pm BST) [see the time in your timezone](https://ww
Meeting location: https://docker.zoom.us/j/779801882
-Announcement: Coming soon
+Announcement:
+[Moby project forum post](https://forums.mobyproject.org/t/2017-07-19-linuxkit-security-sig-meeting/109)
+
+Video recording: https://www.youtube.com/watch?v=04TsF72o-V4
Previous meeting notes: [2017-07-05](2017-07-05.md)
