Workflow for creating heroku app

hobby-dev might be outdated with recent service changes.

source venv/bin/activate
pip install gunicorn
pip freeze > requirements.txt
touch Procfile
heroku login
heroku create kaes-task-list-api
git remote -v
git status
git push heroku master:main
heroku addons:create heroku-postgresql:hobby-dev
heroku run flask db upgrade