2015: link to GopherCon videos from slides

Change-Id: I5c19efb997e81027b8488c3030abbf17f97759de
Reviewed-on: https://go-review.googlesource.com/12881
Reviewed-by: Rob Pike <r@golang.org>
diff --git a/2011/lex.slide b/2011/lex.slide
index 831e451..04c04bd 100644
--- a/2011/lex.slide
+++ b/2011/lex.slide
@@ -5,6 +5,14 @@
 Rob Pike
 r@golang.org
 
+
+* Video
+
+A video of this talk was recorded at the Go Sydney Meetup.
+
+.link https://www.youtube.com/watch?v=HxaD_trXwRE Watch the talk on YouTube
+
+
 * Structural mismatch
 
 Many programming problems realign one data structure to fit another structure.
diff --git a/2015/dynamic-tools.slide b/2015/dynamic-tools.slide
index 30ab740..8d39afd 100644
--- a/2015/dynamic-tools.slide
+++ b/2015/dynamic-tools.slide
@@ -5,6 +5,14 @@
 Google
 dvyukov@
 
+
+* Video
+
+A video of this talk was recorded at GopherCon in Denver.
+
+.link https://www.youtube.com/watch?v=a9xrxRsIbSU Watch the talk on YouTube
+
+
 * About me
 
 Did a bunch of work on Go:
diff --git a/2015/gophercon-go-on-mobile.slide b/2015/gophercon-go-on-mobile.slide
index 0e5fed9..5afb1a6 100644
--- a/2015/gophercon-go-on-mobile.slide
+++ b/2015/gophercon-go-on-mobile.slide
@@ -5,6 +5,14 @@
 Hana Kim
 Google
 
+
+* Video
+
+A video of this talk was recorded at GopherCon in Denver.
+
+.link https://www.youtube.com/watch?v=sQ6-HyPxHKg Watch the talk on YouTube
+
+
 * Caution
 
 .image gophercon-go-on-mobile/caution.png 300 _
diff --git a/2015/gophercon-goevolution.slide b/2015/gophercon-goevolution.slide
index 251eef9..97e25f0 100644
--- a/2015/gophercon-goevolution.slide
+++ b/2015/gophercon-goevolution.slide
@@ -6,6 +6,13 @@
 gri@golang.org
 
 
+* Video
+
+A video of this talk was recorded at GopherCon in Denver.
+
+.link https://www.youtube.com/watch?v=0ReKdcpNyQg Watch the talk on YouTube
+
+
 * 
 
 .image gophercon-goevolution/GopherEvolution.svg
diff --git a/2015/how-go-was-made.slide b/2015/how-go-was-made.slide
index 7614f5d..1f37f68 100644
--- a/2015/how-go-was-made.slide
+++ b/2015/how-go-was-made.slide
@@ -6,6 +6,13 @@
 adg@golang.org
 
 
+* Video
+
+A video of this talk was recorded at GopherCon in Denver.
+
+.link https://www.youtube.com/watch?v=0ht89TxZZnk Watch the talk on YouTube
+
+
 * This talk
 
 How was Go made?