Updated license year

Author: WyriHaximus

README.md

@@ -50,7 +50,7 @@ $loop->run();
 
 The MIT License (MIT)
 
-Copyright (c) 2016 Cees-Jan Kiewiet
+Copyright (c) 2018 Cees-Jan Kiewiet
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal