chore: use present for copyright range

PeachScript · PeachScript · commit 87e2b5e24974 · 2018-10-26T10:34:39.000+08:00
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 PeachScript<scdzwyxst@gmail.com>
+Copyright (c) 2016-present PeachScript<scdzwyxst@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
diff --git a/README.md b/README.md
@@ -29,7 +29,7 @@ Please make sure to read the [Contributing Guide](https://github.com/PeachScript
 ## Licence
 The MIT License (MIT)
 
-Copyright (c) 2016 PeachScript
+Copyright (c) 2016-present PeachScript
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
