minor adjustments

[JonasScholl]

Looks great, thx 👍 I have just some really small suggestions, so that the "PyPI" name is consistently spelled correctly.

The only additional thing I could imagine to be nice is to include something like this for the required project setup:

my-project/
    my-project/
        __init__.py
    pyproject.toml

and also an explicit example of the __init__.py, e.g.

__version__='1.0.0'

However, I couldn't think of a nice way to add this to the readme so far, that's why I didn't include it in this pr