source 'https://rubygems.org' group :development, :test do gem 'jekyll', '~> 3.0.0' gem 'jekyll-redirect-from', '~> 0.9.0' gem 'jekyll-sitemap', '~> 0.9.0' gem 'sass', '~> 3.4.19' gem 'scss_lint', '~> 0.42.2' end