Fix broken link in 2.12.4 release notes

Change-Id: Ic74977c487c9fba4a773f2cee4a60210c1e48d93
diff --git a/ReleaseNotes/ReleaseNotes-2.12.4.txt b/ReleaseNotes/ReleaseNotes-2.12.4.txt
index 411011e..64252c6 100644
--- a/ReleaseNotes/ReleaseNotes-2.12.4.txt
+++ b/ReleaseNotes/ReleaseNotes-2.12.4.txt
@@ -124,5 +124,5 @@
 It was possible for refs to be replicated to remotes despite not being
 visible to groups mentioned in the `authGroup` setting.
 
-* link::https://bugs.chromium.org/p/gerrit/issues/detail?id=4036[Issue 4036]:
+* link:https://bugs.chromium.org/p/gerrit/issues/detail?id=4036[Issue 4036]:
 Fix hanging query when using `is:watched` without authentication.