Created initial migration and updated docs
Created by: ryanlong89
- Changed example .env to have easier way to set database creds and defaults according to what is set in docker-compose.yml
- Removed prisma db push from api/Dockerfile and docker-compose.yml
- Changed README-docker.md to reflect actual path to list of usernames for seed data.
- Changed README-docker.md to run the migrate dev step to setup tables and seed data.
- Changed README-docker.md to add instructions for linting.
- Ran the initial npx prisma migrate dev to start migration history