2.9 presentation: Add link to review UI documentation

Change-Id: Icbe1da5500982b7c5ebc666bc5e969360efd33d5
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
diff --git a/presentations/gerrit-new-features-2.9/gerrit-new-features-2.9.txt b/presentations/gerrit-new-features-2.9/gerrit-new-features-2.9.txt
index f4e4b26..406a8a9 100644
--- a/presentations/gerrit-new-features-2.9/gerrit-new-features-2.9.txt
+++ b/presentations/gerrit-new-features-2.9/gerrit-new-features-2.9.txt
@@ -27,8 +27,9 @@
 
 == New Change Screen
 
+link:https://gerrit-review.googlesource.com/Documentation/user-review-ui.html[
 The Change Screen was completely redesigned and is now based on the
-Gerrit REST API.
+Gerrit REST API.]
 
 * By default users get the new change screen.
 +