Gemfile in trav3-0.2.1 vs Gemfile in trav3-0.2.2

- old
+ new

@@ -10,6 +10,7 @@
   gem 'codeclimate-test-reporter', '~> 1.0.0'
   gem 'rubocop', require: false
   gem 'simplecov', require: false
   gem 'vcr', '~> 4.0'
   gem 'webmock', '~> 3.5'
+  gem 'yard', require: false
 end