It would be nice to have some example data in this repository, both as part of the documentation (we could actually convert it to Markdown and display it with the docs!) and as a continuous integration test. As per cancerDHC/tools#28, we should have example data in several formats and ensure that they can all be validated.

There is code for doing this included as part of the new LinkML Template Repository, so we should get the code behind this for free once we've implemented #7.