add a korean translation to rockbox by David J. Song and Jeong Taek In


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8183 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/CREDITS b/docs/CREDITS
index 216c4d7..91a2098 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -144,7 +144,8 @@
 Mustapha Senhaji
 Adam Boot
 Jonathan Gordon
-Frank Dischner
 Tat Tang
 Toshihiko Itoh
+David J. Song
+Jeong Taek In