Bump copyright years

Author: bbatsov

README.md

@@ -137,7 +137,7 @@ Let's also acknowledge some of the projects leveraged by cider-nrepl:
 
 ## License
 
-Copyright © 2013-2021 Bozhidar Batsov
+Copyright © 2013-2022 Bozhidar Batsov
 
 Distributed under the Eclipse Public License, the same as Clojure.