AUTHORS: Update information for yan12125

* Put my old and new names in the same line
* Remove my email address to avoid spam mails

AUTHORS

@@ -32,12 +32,11 @@ New contributors to libchewing:
   Shaform <[email protected]>
   Chocobo1
   Perry Thompson <[email protected]>
-  Yen Chi Hsuan <[email protected]>
   Peter Dave Hello <[email protected]>
   ShengYenPeng <[email protected]>
   cwlin <[email protected]>
   Billy Su <[email protected]>
-  Chih-Hsuan Yen <yan12125@gmail.com>
+  Chih-Hsuan Yen (Yen Chi Hsuan) https://github.com/yan12125
   Ian Chen <[email protected]>
 
 See the file "ChangeLog" for details.