Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.
For now, there is no special rule. Just make sure you are planning to maintain the preset you want to add to the list.
A lot of times, making a PR adhere to the standards above can be difficult. If the maintainers notice anything that we'd like changed, we'll ask you to edit your PR before we merge it. There's no need to open a new PR, just edit the existing one. If you're not sure how to do that, here is a guide on the different ways you can update your PR so that we can merge it.