Gemfile in config_volumizer-0.2.0 vs Gemfile in config_volumizer-0.3.0

@@ -1,14 +1,18 @@
 source 'https://rubygems.org'
 
 gemspec
 
-group :development do
+group :development, :test do
+  gem 'awesome_print'
   gem 'kramdown'
   gem 'bundler'
   gem 'rake'
   gem 'rspec'
   gem 'rubygems-tasks'
+  gem 'github_changelog_generator'
   gem 'yard'
   gem 'flay'
   gem 'flog'
+
+  gem 'coveralls', require: false
 end