How to get new laptop with OS X 10.13.5 and Xcode 9.3 (9E145) to run this project
https://help.github.com/articles/setting-up-your-github-pages-site-locally-with-jekyll/
this fixed nokogiri install
https://github.com/sparklemotion/nokogiri/issues/1483
(http://www.nokogiri.org/tutorials/installing_nokogiri.html#mac_os_x)
brew unlink xz && sudo gem install nokogiri -v '1.8.3' --source 'https://rubygems.org/' &&
gem install bundler
in this repository directory run
$ bundle install