Update LICENSE

liuchengxu · liuchengxu · commit 5156951136e3 · 2018-08-16T14:23:17.000+08:00
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2017 Liu-Cheng Xu
+Copyright (c) 2016-2018 Liu-Cheng Xu
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
