Gemfile

# If you have OpenSSL installed, we recommend updating
# the following line to use "https"
source 'https://rubygems.org'

group :development do
  gem 'jekyll', '~> 4.4.1'
  gem 'jekyll-sitemap'
  gem 'jekyll-last-modified-at'
end

group :test do
  gem 'rake'
  gem 'html-proofer'
end

gem "webrick", "~> 1.8"