Update LICENSE

Thanks! I have committed it. :)

Co-authored-by: Aaron Erhardt <aaron.erhardt@t-online.de>

Author: wmjae

LICENSE

@@ -1,6 +1,7 @@
 MIT License
 
-Copyright (c) 2019-2025 Hao Hou <haohou302@gmail.com>
+Copyright (c) 2019-2022 Hao Hou <haohou302@gmail.com>
+Copyright (c) 2022-2025 The plotters-rs contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal