** Introduction (all the points inside Setup)
   - Introduction to domain - user stories
     - A book club
     - Users
       - Create a user
       - User should be able to login
     - Books
       - Decide on fields that a book should have
       - User should be able to add a books
       - User should be able to list books
       - User should be able delete books
     - Review
       - User should be able to add a review
       - A user can't add more a single review to a book
       - Fetch all reviews for a book
       - A review cannot be deleted but can be edited.
     - Shelves
       - User should be able to create a shelf.
       - User should be able to delete a shelf.
       - User should be able to add/remove a book from a shelf