Update notes for submitted changes

* Fix FileRepository#convertToReftable which failed if no reflog existed

58/f2e23fded26f8f4a1bfe436b1cbe72bcc11aa4

@@ -0,0 +1,7 @@
+Verified+1: JGit Bot <jgit-bot@eclipse.org>
+Code-Review+2: Jonathan Nieder <jrn@google.com>
+Submitted-by: Jonathan Nieder <jrn@google.com>
+Submitted-at: Sat, 06 Feb 2021 02:10:06 -0500
+Reviewed-on: https://git.eclipse.org/r/c/jgit/jgit/+/174189
+Project: jgit/jgit
+Branch: refs/heads/master