Added Couriersud to credits for finding bugs

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403415

CREDITS

@@ -10,8 +10,8 @@ Thanks to everyone who made this possible, including:
   Hans-Peter Gygax, the Eternal Lands Development Team, Lars Brubaker,
   and Phoenix Kokido for financial contributions
 
-* Marty Leisner for helping find SDL 1.3 bugs in the great SDL Bug Hunt
-  of January 2009!
+* Marty Leisner, and Couriersud for helping find SDL 1.3 bugs in the
+  great SDL Bug Hunt of January 2009!
 
 * Gaëtan de Menten for writing the PHP and SQL behind the SDL website