This is where you'll find the Flask codebase.
- static - Holds any static files that need to be sent over by the server
- templates - Holds the template HTML page files
- init.py - The entrypoint into our app module. It's the first thing that's loaded in the module.
- models.py - Where the models are defined. This is the link between MongoDB documents in a collection and Python objects of a class.
- routes.py - Where the path routes are defined.