docs/kokr: Update Korean translation to tidy up TOCs and refs to license-rules.rst

Transalte this commit to Korean:

  9799445af124 ("docs: tidy up TOCs and refs to license-rules.rst")

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>