add myself to the authors list

Author: thijskramer

AUTHORS.rst

@@ -114,6 +114,7 @@ Authors
 - Stefan Borer (`sbor23 <https://github.com/sbor23>`_)
 - Steven Buss (`sbuss <https://github.com/sbuss>`_)
 - Steven Klass
+- Thijs Kramer (`thijskramer <https://github.com/thijskramer>`_)
 - Tim Schilling (`tim-schilling <https://github.com/tim-schilling>`_)
 - Todd Wolfson (`twolfson <https://github.com/twolfson>`_)
 - Tommy Beadle (`tbeadle <https://github.com/tbeadle>`_)