talks: add link to recording of State of Go May 2017

Change-Id: I98a748179541d082e2b9aa61402dcabdeb2aaef1
Reviewed-on: https://go-review.googlesource.com/46463
Reviewed-by: Chris Broadfoot <cbro@golang.org>
diff --git a/2017/state-of-go-may.slide b/2017/state-of-go-may.slide
index 2a75d49..fc2738e 100644
--- a/2017/state-of-go-may.slide
+++ b/2017/state-of-go-may.slide
@@ -6,6 +6,12 @@
 @francesc
 campoy@golang.org
 
+* Recording
+
+A recording of this talk is available [[https://www.youtube.com/watch?v=dyvpF0jF3AY&list=PLtLJO5JKE5YAeVbgwCkgUWyOBsMvZu4UB&index=1][here]].
+
+.image https://img.youtube.com/vi/dyvpF0jF3AY/0.jpg
+
 * Time flies
 
 Go 1.7 is already 9 months old!