Gemfile in rouge-3.7.0 vs Gemfile in rouge-3.8.0

@@ -20,15 +20,15 @@
   gem 'memory_profiler', :require => false
 end
 
 # Needed for a Rake task
 gem 'git'
+gem 'yard'
 
 group :development do
   gem 'pry'
 
   # docs
-  gem 'yard'
   gem 'github-markup'
 
   # for visual tests
   if RUBY_VERSION < '2.2.0'
     gem 'sinatra', '~> 1.4.8'