Update License copyright date

Genora51 · web-flow · commit 142325da0b36 · 2020-09-07T00:57:10.000+01:00
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License
 
-Copyright (c) 2017 8values. http://8values.github.io.
+Copyright (c) 2020 8values. http://8values.github.io.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
