source 'https://rubygems.org' group :development, :test do gem 'jekyll', '~> 3.8.5' gem 'jekyll-redirect-from', '~> 0.14.0' gem 'jekyll-sitemap', '~> 1.2.0' gem 'wdm', '~> 0.1.1', :install_if => Gem.win_platform? end