Adding a CITATION.cff file

[apmoore1]

Add a CITATION.cff file so that users can cite the software, the Turing way book has a great guide on how to do this. As we may create a paper based around this software in the future I have had a look at how to use the cff file format to ask users to cite both the software and the potential future paper describing the software, of which the answer to this can be found in the CITATION.cff schema guide.

Linked to this would be to create a DOI for the software using Zenodo, a guide on how to do this can be found in this section of the Turing Way book

Checklist of issues to resolve in this issue:

• [x] Add a CITATION.cff file.
• [x] Add a validation step to check the CITATION.cff conforms to the CFF schema within the GitHub CI workflow
• [ ] Link the repository with Zenodo to create a DOI.