LICENSE in d3-rails-6.6.2 vs LICENSE in d3-rails-7.0.0

@@ -1,10 +1,10 @@
 For D3 itself, please see D3-LICENSE. For the rest of the code, the following
 license applies:
 
 The MIT License
 
-Copyright (c) 2012-2014 Markus Fenske
+Copyright (c) 2012-2021 Markus Fenske
 
 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, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell