docs: add empty lines

Author: kenjis

user_guide_src/source/models/entities.rst

@@ -60,9 +60,13 @@ Create the model first at **app/Models/UserModel.php** so that we can interact w
 
 .. literalinclude:: entities/002.php
 
-The model uses the ``users`` table in the database for all of its activities. We've set the ``$allowedFields`` property
+The model uses the ``users`` table in the database for all of its activities.
+
+We've set the ``$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
+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.