a few quality of life improvements

[Krastanov]

• in the readme add a reference to your arxiv paper
• add a ready-to-use bibtex citation to the paper
• use zenodo to create a DOI link for this repository -- do not publicize that DOI link much, but use the DOI link inside of your own paper as a reference to this github
• in the readme add a link to the implementation in QuantumClifford.jl's docs
• add tags to the repository so that it pops up in searches (on the right hand side of the landing page for the repo)
• add a description to the repository so that it pops up in searches (on the right hand side of the landing page for the repo)
• add a website link to your arxiv paper in the repository metadata to help with search engine optimization (on the right hand side of the landing page for the repo)

[Fe-r-oz]

Thank you so very much for your suggestions! I have created a release that automatically generated the DOI link.

[Krastanov]

you might want to add something like this when the paper is ready https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-citation-files