Added a database dictionary markdown file which attempts to describe at a highlevel the database, tables, fields and the reason for these. also updaed the models.py file to reflect the updated database, since it was so out of date.  I'm currently not using it beyond documenting the schema.  also added a Projet Guidelines file and lessons learned file.  These are my attempt at tryiing out spec-driven development.  Projectguidelines is the core guide that will act as the source of truth of the application.