Doi and numpy

[erickmartins]

Description

This adds a DOI badge pointing to the biorxiv preprint and adds a numpy < 2.0 condition to install, given the upcoming release in Jan 24.

Checklist

No change in code other than setup.py.

For reviewers

• Check that the PR title is short, concise, and will make sense 1 year later.
• Check that new functions are imported in corresponding __init__.py.

[psobolewskiPhD]

Maybe also a CITATION file? https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-citation-files https://citation-file-format.github.io