README.md in characteristics-1.3.0 vs README.md in characteristics-1.4.0

- old
+ new

@@ -116,6 +116,6 @@
 
 - [Symbolify](https://github.com/janlelis/symbolify)
 
 ## MIT License
 
-Copyright (C) 2017-2020 Jan Lelis <https://janlelis.com>. Released under the MIT license.
+Copyright (C) 2017-2021 Jan Lelis <https://janlelis.com>. Released under the MIT license.