Add my current public email in both A+C, but keep old one too.
Add my @changkun.de email to CONTRIBUTORS.
Change-Id: Ic5a585582a5f5142fbdd0a132235c19f05d9e680
Reviewed-on: https://go-review.googlesource.com/c/go/+/367116
Run-TryBot: Changkun Ou <mail@changkun.de>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ben Shi <powerman1st@163.com>
Casey Marshall <casey.marshall@gmail.com>
Cezar Sá Espinola <cezarsa@gmail.com>
ChaiShushan <chaishushan@gmail.com>
+Changkun Ou <hi@changkun.de> <hi@changkun.us>
Chaoqun Han <hanssccv@gmail.com>
Charles Fenwick Elliott <Charles@FenwickElliott.io>
Charles L. Dorian <cldorian@gmail.com>
Cezar Sá Espinola <cezarsa@gmail.com>
Chad Rosier <mrosier.qdt@qualcommdatacenter.com>
ChaiShushan <chaishushan@gmail.com>
-Changkun Ou <hi@changkun.us>
+Changkun Ou <hi@changkun.de> <hi@changkun.us>
Channing Kimble-Brown <channing@golang.org>
Chao Xu <xuchao@google.com>
Chaoqun Han <hanssccv@gmail.com>