update copyright year

slonopotamus · slonopotamus · commit 8ace41d113af · 2021-01-07T17:27:23.000+03:00
diff --git a/LICENSE b/LICENSE
@@ -1,5 +1,5 @@
 The MIT License (MIT)
-Copyright (c) Ted Nyman and Aman Gupta, 2012-2013
+Copyright (C) Ted Nyman, Aman Gupta, Marat Radchenko, 2012-2021
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
 associated documentation files (the "Software"), to deal in the Software without restriction, 
