Update notes for submitted changes

* Support protocol v2 want-ref in UploadPack

c4/77b0ddcb68ac0b1c26270187d82fccc70802c6

+Code-Review+2: Jonathan Nieder <jrn@google.com>
+Verified+1: Jonathan Nieder <jrn@google.com>
+Submitted-by: Jonathan Nieder <jrn@google.com>
+Submitted-at: Fri, 10 Aug 2018 18:49:39 -0400
+Reviewed-on: https://git.eclipse.org/r/126564
+Project: jgit/jgit
+Branch: refs/heads/master