add update to Unicode 11.0.0 to NEWS [ci skip]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66216 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
add update to Unicode 11.0.0 to NEWS [ci skip]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66216 b2dd03c8-39d4-4d8f-98ff-823fe69b080e