Schedule the 'mono-repos with Gerrit' talk on Day #2

Change-Id: I8e9d821a3bd6412348365f4b406dc7b71793d281
diff --git a/schedule.md b/schedule.md
index 61535fe..2ba3d90 100644
--- a/schedule.md
+++ b/schedule.md
@@ -20,7 +20,7 @@
 
 | Time                  | Session                                                      |
 |-----------------------|--------------------------------------------------------------|
-|  8:00 PST / 17:00 CET | Session 4 - __available for proposals__ (may include 1 poll) |
+|  8:00 PST / 17:00 CET | [How to survive with mono-repos in Gerrit](sessions/mono-repo-with-gerrit.md) |
 |  8:30 PST / 17:30 CET | Session 5 - __available for proposals__ (may include 1 poll) |
 |  9:00 PST / 18:00 CET | Session 6 - __available for proposals__ (may include 1 poll) |
 |  9:30 PST / 18:30 CET | Q&A with the maintainers (may include 1-2 polls)             |