Correct unfaithful translation on HOWTO in ko_KR

This patch corrects unfaithful Korean translation in Documentation/ko_KR/HOWTO.

Signed-off-by: Lee, Jae-Hong <pyrasis@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>