Clarify LICENSE

LICENSE

-The MIT License (MIT)
-Copyright © 2015 Daniel Fu <daniel820313@gmail.com>.
-Copyright © 2019 Loki 'l0k18' Verloren <stalker.loki@protonmail.ch>.
+The MIT License (Expat)
 Copyright © 2021 Gridfinity, LLC. <admin@gridfinity.com>.
 Copyright © 2021 Jeffrey H. Johnson <jeff@gridfinity.com>.
+Copyright © 2015-2020 Daniel Fu <daniel820313@gmail.com>.
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal