Update list of authors

ff8d786a · Ghislain Antony Vaillant · fe0e746f · ff8d786a
Commit ff8d786a authored Apr 21, 2017 by Ghislain Antony Vaillant
--- a/nithumb.py
+++ b/nithumb.py
-# Author: Ghislain Antony Vaillant <g.vaillant@imperial.ac.uk>
+# Authors: Ghislain Antony Vaillant <g.vaillant@imperial.ac.uk>
+#          Jonathan Passerat-Palmbach <j.passerat-palmbach@imperial.ac.uk>

 from __future__ import division