Add some header
Add some header

Well, I know we should use a kind of proper atribution but I lack the
time to achieve that.

Another plan is to migrate code review into differential instead of
pull request.

librewiki/phabricator-korean-i18n,librewiki/phabricator-korean-i18n,hwangjy9/phabricator-korean-i18n,hwangjy9/phabricator-korean-i18n