*Ref: *http://jekyllrb.com/ *https://github.com/madhur/PortableJekyll
install node
npm install -g grunt-cli
npm init for package.json
npm install grunt --save-dev
npm install grunt-contrib-watch --save-dev
npm install grunt-shell --save-dev
or npm install grunt-jekyll --save-dev
go to project root dir
open command line tool
run grunt command