update license and twitter links

Author: magmax

README.rst

@@ -120,7 +120,7 @@ Please, **Execute the tests before any pull-request**. This will avoid invalid b
 License
 =======
 
-Copyright (c) 2014, 2015 Miguel Angel Garcia (`@magmax9`_).
+Copyright (c) 2014-2021 Miguel Angel Garcia (`@magmax_en`_).
 
 Based on previous work on gist `getch()-like unbuffered character reading from stdin on both Windows and Unix (Python recipe)`_, started by `Danny Yoo`_.
 
@@ -148,7 +148,7 @@ Licensed under `the MIT license`_.
 .. _python-inquirer: https://github.com/magmax/python-inquirer
 .. _Travis: https://travis-ci.org/magmax/python-readchar
 .. _Coveralls: https://coveralls.io/r/magmax/python-readchar
-.. _@magmax9: https://twitter.com/magmax9
+.. _@magmax_en: https://twitter.com/magmax_en
 
 .. _the MIT license: http://opensource.org/licenses/MIT
 .. _getch()-like unbuffered character reading from stdin on both Windows and Unix (Python recipe): http://code.activestate.com/recipes/134892/