Description
Our goal is to keep this astropy-tutorials repo easy to clone, so that means we'd like to ensure that all notebooks committed to main don't include their outputs. pre-commit with an nbstripout hook is a great way to do this. We can have instructions on how to set up pre-commit as a contributor, and also run pre-commit as part of CI.
We'd want to have a policy of squashing all PRs so that intermediate commits that might have outputs arn't included on the main branch.
We want this to be as easy as possible for a contributor to use. Definitely we should document setting up pre-commit, and also document a command to run if a PR does have notebook outputs present. Another option is to look at https://pre-commit.ci, which automatically pushes fixes to a PR. This is free for open source repos.