docs: break long lines

Author: kenjis

user_guide_src/source/models/entities.rst

@@ -62,13 +62,14 @@ Create the model first at **app/Models/UserModel.php** so that we can interact w
 
 The model uses the ``users`` table in the database for all of its activities.
 
-We've set the ``$allowedFields`` property
-to include all of the fields that we want outside classes to change. The ``id``, ``created_at``, and ``updated_at`` fields
-are handled automatically by the class or the database, so we don't want to change those.
-
-Finally, we've set our Entity
-class as the ``$returnType``. This ensures that all methods on the model that return rows from the database will return
-instances of our User Entity class instead of an object or array like normal.
+We've set the ``$allowedFields`` property to include all of the fields that we
+want outside classes to change. The ``id``, ``created_at``, and ``updated_at``
+fields are handled automatically by the class or the database, so we don't want
+to change those.
+
+Finally, we've set our Entity class as the ``$returnType``. This ensures that all
+methods on the model that return rows from the database will return instances of
+our User Entity class instead of an object or array like normal.
 
 Working with the Entity Class
 =============================