fix flake8 errors

add funciton to movie model + mock test on it

fix flake8 error message.

Update README.md

Update README.md

Update python-app.yml

Update python-app.yml

Update python-app.yml

Create python-app.yml

add unitary test

better integration test + useful fixtures

add integration test for the movie edit

Fix bug in update where it would create new instance instead of editing the current one

add feature to be able to edit movie

add integration test : add_movie