Create Zenodo repository for the tutorial

[santisoler]

Would be nice to have the repo for the tutorial uploaded to Zenodo, so we can cite it through a DOI.

TODO

• Draft a new Zenodo repo (don't publish it)
• Book a DOI
• Include the DOI in the README.md. We could also include a ## Citing section with instructions on how to cite.
• Create a release
• Download zip from the release
• Upload zip to Zenodo
• Publish the Zenodo repo

[rowanc1]

Also, note that the conference will provide a DOI for this that directly resolves to the conference website, this will be hosted by crossref and include additional metadata (for citations etc).