sig-security: add forum link to announcement
@@ -3,7 +3,7 @@ Time: **9am PDT** (12pm EDT, 5pm BST) [see the time in your timezone](https://ww
Meeting location: https://docker.zoom.us/j/779801882
-Announcement: Moby project forum post coming soon!
+Announcement: [Moby project forum post](https://forums.mobyproject.org/t/2017-06-21-linuxkit-security-sig-meeting/74)
Previous meeting notes: [2017-06-07](2017-06-07.md)
