doc: update AUTHORS list

Update AUTHORS list using tools/update-authors.sh

.mailmap

@@ -66,6 +66,7 @@ Joshua S. Weinstein <josher19@users.sf.net>
 Jérémy Lal <kapouer@melix.org>
 Jérémy Lal <kapouer@melix.org> <holisme@gmail.com>
 Kai Sasaki Lewuathe <sasaki_kai@lewuathe.sakura.ne.jp>
+Karl Skomski <karl@skomski.com> <mail@skomski.com>
 Kazuyuki Yamada <tasogare.pg@gmail.com>
 Keith M Wesolowski <wesolows@joyent.com> <wesolows@foobazco.org>
 Kelsey Breseman <ifoundthemeaningoflife@gmail.com>
@@ -76,6 +77,8 @@ Luke Bayes <lbayes@patternpark.com>
 Maciej Małecki <maciej.malecki@notimplemented.org> <me@mmalecki.com>
 Malte-Thorben Bruns <skenqbx@gmail.com>
 Malte-Thorben Bruns <skenqbx@googlemail.com>
+Marcin Cieślak <saper@marcincieslak.com>
+Marcin Cieślak <saper@marcincieslak.com> <saper@saper.info>
 Mathias Pettersson <mape@mape.me>
 Matthew Lye <muddletoes@hotmail.com>
 Michael Bernstein <michaelrbernstein@gmail.com>

AUTHORS

@@ -786,5 +786,8 @@ Matt Loring <mattloring@google.com>
 P.S.V.R <pmq2001@gmail.com>
 Jacob Edelman <edelman.jd@gmail.com>
 Mike Atkins <mike.atkins@lanetix.com>
+hackerjs <4141095@qq.com>
+Minwoo Jung <jmwsoft@gmail.com>
+Marcin Cieślak <saper@marcincieslak.com>
 
 # Generated by tools/update-authors.sh