AUTHORS: update

Author: bk138

AUTHORS

@@ -50,7 +50,7 @@ Tim Gates, Dinglan Peng, Ryo Ota, Kyle Evans, Kang Lin, Derek Schrock,
 Alex Converse, Thorsten Scherer, Marco Fortina, Antenore Gatta, Maxim Devaev
 Maksym Sobolyev, Huben Chang, Peter Vicman, Johann Obermayr, Nicolas Morais,
 Volodymyr Samokhatko, Mingjie Shen, Joris Hans Meijer, Sérgio Basto,
-Jeffrey Knockel and Christian Hitz.
+Jeffrey Knockel, Christian Hitz and Chih-Hsuan Yen.
 
 Probably we forgot quite a few people sending a patch here and there, which
 really made a difference. Without those, some obscure bugs still would