Link the Gerrit load testing with Gatling slides

Change-Id: Iae498569b7ca4f1223d3163f03395dd63154a265

sessions/gerrit-load-testing.md

diff --git a/sessions/gerrit-load-testing.md b/sessions/gerrit-load-testing.md
index fd1398e..787da25 100644
--- a/sessions/gerrit-load-testing.md
+++ b/sessions/gerrit-load-testing.md
@@ -12,4 +12,6 @@
 I will show different use cases and scenarios based on Gerrit installation
 currently in production.
 
+[Presentation slides](https://docs.google.com/presentation/d/1dEVO5uNNt0ZpSNwS3H4O4A6Tz5gchMg9L8JhHrG6l6E)
+
 *[Fabio Ponciroli, GerritForge](../speakers.md#fponciroli)*