Thanks as always for providing these epic resources!
The repository is lacking some GitHub-specific features, such as a description, website, and labels. These are surprisingly important for organic discovery (assuming the goal is to get lots of people using the assets :P)
On top of that, the license isn't clear to me. The readme says these are 'open source', so I assume the license is permissive, but it would be awesome if you would clarify with a license file. Even permissive licenses like MIT or CC0 have some subtle differences/restrictions.
I actually checked your website and I think it might be this one? https://creativecommons.org/licenses/by/4.0/, which requires attribution (that's fine, but it's just good to be clear about these things).