Fix defective LICENSE.md — add copyright holder name (#306)

The MIT license requires the copyright notice to include the copyright
holder. The LICENSE has read "Copyright (c) 2016 - present" with no
name since 2019. package.json correctly identifies Tim Berners-Lee as
the author (first commit May 3, 2016).

Fixes #305

Co-authored-by: Jesse Wright <63333554+jeswr@users.noreply.github.com>

Author: melvincarvalho

LICENSE.md

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 - present
+Copyright (c) 2016 - present Tim Berners-Lee and contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal