Add slides for Gerrit at Yahoo

Change-Id: If6bb58c575d46fe004a6233e368ddf1c7a6a877f
diff --git a/sat.md b/sat.md
index b84603e..9459dbc 100644
--- a/sat.md
+++ b/sat.md
@@ -115,6 +115,8 @@
 
 *Shanbin Wang, Yahoo*
 
+[Slides](https://drive.google.com/file/d/0BxQu3m7vXWQfOUc5UzljLUdLb0U/view?usp=sharing)
+
 ## 3:30 pm Git at Google
 
 *Shawn Pearce, Google*