blog: link GopherCon lightning talk videos

Change-Id: I270148b9ae9afde304144a57c43faae872a66bfa
Reviewed-on: https://go-review.googlesource.com/13819
Reviewed-by: Andrew Gerrand <adg@golang.org>
diff --git a/content/gophercon2015.article b/content/gophercon2015.article
index 9d61f8f..b5cf676 100644
--- a/content/gophercon2015.article
+++ b/content/gophercon2015.article
@@ -47,7 +47,7 @@
 - How Go Was Made — Andrew Gerrand ([[https://www.youtube.com/watch?v=0ht89TxZZnk][video]]) ([[http://talks.golang.org/2015/how-go-was-made.slide][slides]])
 
 The [[http://gophercon.com/schedule/10july/][hack day]] was also a ton of fun,
-with hours of lightning talks and a range of activities from programming robots
+with hours of [[https://www.youtube.com/playlist?list=PL2ntRZ1ySWBeHqlHM8DmvS8axgbrpvF9b][lightning talks]] and a range of activities from programming robots
 to a Magic: the Gathering tournament.
 
 Huge thanks to the event organizers Brian Ketelsen and Eric St. Martin and