Add Class Diagram and Description

Please read the Classes and Variables in the Project Documentation and create a class diagram to demonstrate your understanding of the relationships between classes. Be sure to show one to one, one to many, or many to many relationships using the proper notation. Also, indicate primary and foreign keys.

You can provide a screenshot of your class diagram. I suggest using app.diagrams.net to create the class diagram. Feel free to message an admin if you have any questions.