# path: Documents/dev
# path is located whenever you want
$ git clone https://github.com/username/username.github.io
# path: Documents/dev/username.github.io
$ echo "Hello World" > index.html
# path: Documents/dev/username.github.io
$ git add --all
$ git commit -m "Initial commit"
$ git push -u origin master
# path: Documents/dev/username.github.io
$ ruby --version
# brew 활용하기
$ brew install ruby
# path: Documents/dev/username.github.io
$ touch Gemfile
# path: Documents/dev/username.github.io
$ bundle install
# Fetching gem metadata from https://rubygems.org/............
# Fetching version metadata from https://rubygems.org/...
# Fetching dependency metadata from https://rubygems.org/..
# Resolving dependencies...