Add Shub to AUTHORS file

Author: nene

AUTHORS

@@ -57,6 +57,7 @@ Sasha Aliashkevich <olsender@gmail.com>
 Sean Song <mail@seansong.dev>
 Sebastian Lyng Johansen <seblyng98@gmail.com>
 Sergei Egorov <sergei.egorov@zeroturnaround.com>
+Shub <shub1493biswas@gmail.com>
 Stanislav Germanovskii <s.germanovskiy@tinkoff.ru>
 Steven Yung <stevenyung@fastmail.com>
 Timon Jurschitsch <timon.jurschitsch@gmail.com>