Improve License.

Author: Juan Carlos

README.md

@@ -168,7 +168,7 @@ This will make a copy of all `*.html` renaming them as `*.htm` recursively from
 
 # Licence
 
-- GNU GPL and GNU LGPL and MIT.
+- GNU GPL and GNU LGPL and [MIT](https://github.com/juancarlospaco/css-html-js-minify/issues/65#issuecomment-330983569).
 
 This work is free software:
 You can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.