This is a cleaned up version of gaohaoyang's Jekyll theme https://github.com/Gaohaoyang/gaohaoyang.github.io
a nice alternative is LiXizhi's Jekyll theme (which actually led me to this one) http://jekyllthemes.org/themes/wiki-blog/
To use this repo, first install Jekyll https://jekyllrb.com/docs/installation/
then clone the repo and just hit jekyll serve in the console https://jekyllrb.com/docs/usage/