### Check existing issues - [x] I've verified that this request isn't described by any existing issues. ### Request This concerns the Flask, Django and FastAPI tutorials. After the app is created, there are in-line instructions on how to run the app. This does not match the rest of the instructions and can lead to users potenitally missing it. These instructions should have their own code block and the text above it should be updated accordingly. ### Document location https://documentation.ubuntu.com/rockcraft/latest/tutorial/flask/#tutorial-build-a-rock-for-a-flask-app https://documentation.ubuntu.com/rockcraft/latest/tutorial/django/#tutorial-build-a-rock-for-a-django-app https://documentation.ubuntu.com/rockcraft/latest/tutorial/fastapi/#tutorial-build-a-rock-for-a-fastapi-app