updated license

Author: flexatone

LICENSE.txt

@@ -4,7 +4,7 @@ License
 
 MIT License
 
-Copyright (c) 2012-2022 Research Affiliates
+Copyright (c) 2012-2022 Christopher Ariza, Research Affiliates, others
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal