Update AUTHORS

AUTHORS

@@ -1,3 +1,8 @@
 Patrick Altman <paltman@gmail.com>
 James Tauber <jtauber@jtauber.com>
-Katherine “Kati” Michel <https://github.com/KatherineMichel>
+Anna Ossowski <ossanna16@gmx.de>
+arthur <arthur@wallstreetweb.net>
+Adam Feldman <adamfeldman@users.noreply.github.com>
+Katherine Michel <kthrnmichel@gmail.com>
+KatherineMichel <kthrnmichel@gmail.com>
+Graham Ullrich <graham@flyingcracker.com>