rails-api/active_model_serializers — pull request #728 by kurko (2014-11-12 22:02:40+00:00)
Title: Use type as key for linked resources

If type is `author` but the association is called `writer`, the linked
resource key should be called `authors`, e.g

{
...
linked: {
authors: [{
...
}]
}
...
}