Add slides for 'new in 2.14 and 2.15'

Change-Id: Ice98a466a181d48c828b727f1fdb1c35c8c720d5
diff --git a/sessions/new-in-2.14.md b/sessions/new-in-2.14.md
index e929879..4739391 100644
--- a/sessions/new-in-2.14.md
+++ b/sessions/new-in-2.14.md
@@ -1,5 +1,7 @@
 # What's new in Gerrit 2.14.x and 2.15
 
+[Slides](https://storage.cloud.google.com/gerrit-talks/summit/2018/whats-new-in-2.14-and-2.15-gus-2018.pdf)
+
 Overview of the new features included in Gerrit version 2.14.
 
 Version 2.14 was released more than a year ago, so it's not "new"