Fix Lint links in README

Author: Vince Thomas

README.md

@@ -266,8 +266,8 @@ to know about, but not part of ActiveModelSerializers.)
 
 - An `ActiveRecord::Base` object.
 - Any Ruby object that passes the
-  [Lint](http://www.rubydoc.info/github/rails-api/active_model_serializers/ActiveModel/Serializer/Lint/Tests)
-  [code](https://github.com/rails-api/active_model_serializers/blob/master/lib/active_model/serializer/lint.rb).
+  [Lint](https://www.rubydoc.info/gems/active_model_serializers/ActiveModel/Serializer/Lint/Tests)
+  [(code)](lib/active_model/serializer/lint.rb).
 
 ActiveModelSerializers provides a
 [`ActiveModelSerializers::Model`](https://github.com/rails-api/active_model_serializers/blob/master/lib/active_model_serializers/model.rb),