Everything I've done and learned from the Big Data HCI course
Run this to install dependencies
$ npm install
Run the serve to preview locally
$ gitbook serve
Build
$ gitbook build
Commit
$ git add _book
$ git commit -m -a 'a commit message'
Upload
$ git subtree push --prefix _book origin gh-pages
The updated book should be visible at [your-github-id].github.io/book