package/jack1/Config.in: fix wiki link

The entry seems to have been renamed slightly.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/jack1/Config.in

@@ -25,7 +25,7 @@ config BR2_PACKAGE_JACK1
 	  Another implementation (BR2_PACKAGE_JACK2) is also available,
 	  please consult the documentation to choose the right one:
 
-	  https://github.com/jackaudio/jackaudio.github.com/wiki/Q_difference_jack1_jack2
+	  https://github.com/jackaudio/jackaudio.github.com/wiki/Differences-between-jack1-and-jack2
 
 comment "jack1 needs a toolchain w/ threads, dynamic library"
 	depends on BR2_USE_MMU