Gemfile

source "https://rubygems.org"
ruby RUBY_VERSION

# Hello! This is where you manage which Jekyll version is used to run.
# When you want to use a different version, change it below, save the
# file and run `bundle install`. Run Jekyll with `bundle exec`, like so:
#
#     bundle exec jekyll serve

# This is the default theme for new Jekyll sites. And possibly only theme
# supported by github-pages.
# gem "minima", "~> 2.0"

# gem "github-pages", group: :jekyll_plugins

# require 'json'
# require 'open-uri'
# versions = JSON.parse(open('https://pages.github.com/versions.json').read)
# gem 'github-pages'
# gem 'github-pages', versions['github-pages']
# gem 'github-pages', "117"
# gem 'github-pages', "123"
# gem 'github-pages', "123", group: :jekyll_plugins
gem 'github-pages', "123", :group => :jekyll_plugins
# gem "github-pages", group: :jekyll_plugins

# If you have any plugins, put them here!
group :jekyll_plugins do
  # gem "jekyll-feed", "~> 0.6"
  gem "jekyll-feed", "~> 0.9.1"
end

## https://github.com/jch/html-pipeline
# gem 'html-pipeline'
# gem 'github-linguist'
# gem 'github-markdown'