A+C: add Nikita Gillmann (individual CLA)

previous contribution: https://go-review.googlesource.com/c/go/+/178397/

Change-Id: Ia4038153d0083c1004d0e48c0c6c1eec0774ddc4
GitHub-Last-Rev: de08e864492bd1f9cfaa10205b205d484db79204
GitHub-Pull-Request: golang/go#39584
Reviewed-on: https://go-review.googlesource.com/c/go/+/237821
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/AUTHORS b/AUTHORS
index f8d1eb8..9090130 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -1044,6 +1044,7 @@
 Nigel Kerr <nigel.kerr@gmail.com>
 Nik Nyby <nnyby@columbia.edu>
 Nikhil Benesch <nikhil.benesch@gmail.com>
+Nikita Gillmann <nikita@n0.is> <ng0@n0.is>
 Niklas Schnelle <niklas.schnelle@gmail.com>
 Niko Dziemba <niko@dziemba.com>
 Nikolay Turpitko <nikolay@turpitko.com>
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index c64ab43..dec3246 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -1654,6 +1654,7 @@
 Nigel Tao <nigeltao@golang.org>
 Nik Nyby <nnyby@columbia.edu>
 Nikhil Benesch <nikhil.benesch@gmail.com>
+Nikita Gillmann <nikita@n0.is> <ng0@n0.is>
 Nikita Kryuchkov <nkryuchkov10@gmail.com>
 Nikita Vanyasin <nikita.vanyasin@gmail.com>
 Niklas Schnelle <niklas.schnelle@gmail.com>