chore: update copyright parts of license (#592)

zry656565 · web-flow · commit 7bc6d6ca5595 · 2020-07-02T12:16:37.000+08:00
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,7 @@
 MIT License
 
-Copyright (c) 2018 jdneo
+Copyright (c) 2020-present 力扣
+Copyright (c) 2018-2019 jdneo
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
