jsonapi-resources instead of active-model-serializer to support json-api for rails 5 api

In the course https://code.tutsplus.com/courses/create-a-full-stack-rails-and-ember-app, author has explained to use active-model-serializer which partially supports json-api

The jsonapi-resources project recently merged rails 5 support which is in full compliance with json-api ( https://github.com/cerebris/jsonapi-resources ).

Please add videos which contain jsonapi-resources as well.