split ZZ by Njet and also use Njet as CR variable (#129) * split ZZ by Njet and also use Njet as CR variable * v2.4.2 * docs * fix docs CI
split ZZ by Njet and also use Njet as CR variable (#129) * split ZZ by Njet and also use Njet as CR variable * v2.4.2 * docs * fix docs CI