Bibtex for datasets and models

[olliethomas]

Every model should have a copy of the bibtex in the docs.
Ideally same for the datasets, and I guess any metrics too if appropriate.

[tmke8]

Be sure to use the right reST syntax: https://github.com/wearepal/wiki/blob/main/how_tos/how_to_write_sphinx_docstrings.md#code-blocks