Video and transcript for Zoekt talk

Change-Id: I9e6c8b545545e2e72720bc009fa3164befd82607

sessions/zoekt-improvements.md

diff --git a/sessions/zoekt-improvements.md b/sessions/zoekt-improvements.md
index aeaa17f..33dcea3 100644
--- a/sessions/zoekt-improvements.md
+++ b/sessions/zoekt-improvements.md
@@ -7,4 +7,6 @@
 
 *[Slides](https://storage.googleapis.com/gerrit-talks/summit/2017/Zoekt%20-%20improved%20codesearch.pdf)
 
+*[Video and Transcript](https://gitenterprise.me/2017/11/01/gerrit-user-summit-zoekt-code-search-engine/)
+
 *[Han-Wen Nienhuys, Google](../speakers.md#hanwen)*