Updated Polish translation by Tomasz Mon FS# 6592

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12149 a1c6a512-1295-4272-9138-f99709370657
diff --git a/docs/CREDITS b/docs/CREDITS
index a5c260f..fb27eaf 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -265,3 +265,4 @@
 Piotr Jafiszow
 Gary Allen
 John BouAntoun
+Tomasz Mon