move nodejs install to main apt-get command, use github-pages as example additional gem
move nodejs install to main apt-get command, use github-pages as example additional gem

mchelen/michaelchelen.net,ellipsonic/jekyll_app_demo,mchelen/michaelchelen.net,mchelen/michaelchelen.net,ellipsonic/jekyll_app_demo,ellipsonic/jekyll_app_demo,ellipsonic/jekyll_app_demo