Update notes for submitted changes

* reftable: split off generic code from DFS code

2b/1e942729617c45d2cb03b7556ab3d63253f64f

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Jonathan Tan <jonathantanmy@google.com>
+Submitted-by: Jonathan Tan <jonathantanmy@google.com>
+Submitted-at: Wed, 16 Oct 2019 15:13:53 -0400
+Reviewed-on: https://git.eclipse.org/r/147301
+Project: jgit/jgit
+Branch: refs/heads/master