Check out the build branch:
$ git clone git@github.com:rjelierse/rjelierse.github.io -b build
Install the NodeJS dependencies:
$ npm install
On the build branch, generate the files for the GitHub Pages site:
$ make release
$ git commit release
Update the master branch by issuing a git subtree push:
$ git subtree push -P release --squash origin master
$ git push origin master