Update LICENSE (nodejs#205)

Trott · web-flow · commit f467beac111b · 2019-03-27T17:18:01.000-07:00
We're not distributing gatsby, right? We're just using it.
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 gatsbyjs
+Copyright Node.js contributors. All rights reserved.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
