Missing information in doc regarding Circular reference

[BorbagUskada]

There is a lack of information regarding handling of circular reference with associations.
Creating a basic route with an Entity association lead the following error if associated entity reference root one :

Uncaught PHP Exception Symfony\Component\Serializer\Exception\CircularReferenceException: "A circular reference has been detected when serializing the object of class "App\Domain\Product\Model\Product" (configured limit: 1)." at AbstractNormalizer.php line 193

There should be a part of the doc indicating that this can be resolved by serialization groups.