Guidelines for code review

At some stage we may wish to develop guidelines around code review (e.g. the code associated with producing a particular analysis input or output may need to be reviewed before that input/output is used/seen by others).

It might be useful to borrow from the Journal of Open Source Software review criteria when developing a checklist for code reviewers: https://joss.readthedocs.io/en/latest/review_criteria.html#review-items