chore: update license year

jfcherng · jfcherng · commit b06f61418231 · 2020-06-08T20:11:02.000+08:00
Signed-off-by: Jack Cherng &lt;jfcherng@gmail.com&gt;
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018-2019 Jack Cherng (jfcherng)
+Copyright (c) 2018-2020 Jack Cherng <jfcherng@gmail.com>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
