Gemfile in haveapi-go-client-0.20.0 vs Gemfile in haveapi-go-client-0.21.0

@@ -1,4 +1,9 @@
 source 'https://rubygems.org'
 gemspec
 
 gem 'haveapi-client', path: '../ruby'
+
+group :development do
+  gem 'bundler'
+  gem 'rake'
+end