A PR about the writing guide for this repo popped up on my Github feed, and it looks like abolutely amazing! I'll definitely be recommending this to others! In case you're looking for suggestions to improve it, I couldn't see mention of comma splices or (less commonly) run-on sentences. I'd suggest adding some info on what they are, why they are bad, and how to fix (e.g., https://www.butte.edu/departments/cas/tipsheets/grammar/run_ons.html, https://libguides.hull.ac.uk/grammar/commasplices)? Sorry if this is already covered and I just missed it (e.g., maybe already covered in this secton, https://mathmarecol.github.io/education/2025-09-08-WritingWell/#short-and-simple-sentences).