update license information

AUTHORS

@@ -1,4 +1,4 @@
-# This is the official list of aquachain authors for copyright purposes.
+# This is the official list of go-ethereum authors for copyright purposes.
 
 Afri Schoedon <5chdn@users.noreply.github.com>
 Agustin Armellini Fischer <armellini13@gmail.com>
@@ -36,7 +36,7 @@ Elias Naur <elias.naur@gmail.com>
 Elliot Shepherd <elliot@identitii.com>
 Enrique Fynn <enriquefynn@gmail.com>
 Ernesto del Toro <ernesto.deltoro@gmail.com>
-Aquaan Buchman <ethan@coinculture.info>
+Ethan Buchman <ethan@coinculture.info>
 Eugene Valeyev <evgen.povt@gmail.com>
 Evangelos Pappas <epappas@evalonlabs.com>
 Evgeny Danilenko <6655321@bk.ru>
@@ -64,20 +64,20 @@ Janoš Guljaš <janos@users.noreply.github.com>
 Jason Carver <jacarver@linkedin.com>
 Jay Guo <guojiannan1101@gmail.com>
 Jeff R. Allen <jra@nella.org>
-Jeffrey Wilcke <jeffrey@aquachain.org>
+Jeffrey Wilcke <jeffrey@ethereum.org>
 Jens Agerberg <github@agerberg.me>
 Jia Chenhui <jiachenhui1989@gmail.com>
 Jim McDonald <Jim@mcdee.net>
 Joel Burget <joelburget@gmail.com>
 Jonathan Brown <jbrown@bluedroplet.com>
-Joseph Chow <aquachain@outlook.com>
+Joseph Chow <ethereum@outlook.com>
 Justin Clark-Casey <justincc@justincc.org>
 Justin Drake <drakefjustin@gmail.com>
 Kenji Siu <kenji@isuntv.com>
 Kobi Gurkan <kobigurk@gmail.com>
 Konrad Feldmeier <konrad@brainbot.com>
 Kurkó Mihály <kurkomisi@users.noreply.github.com>
-Kyuntae Aquaan Kim <ethan.kyuntae.kim@gmail.com>
+Kyuntae Ethan Kim <ethan.kyuntae.kim@gmail.com>
 Lefteris Karapetsas <lefteris@refu.co>
 Leif Jurvetson <leijurv@gmail.com>
 Leo Shklovskii <leo@thermopylae.net>