They could also learn how the website works, or how markdown works. Not everyone needs to be treated like toddlers. Colleagues can be surprisingly capable if you educate them.
When trying to educate a group of people, it is useful to understand the range of experiences they might have had.
For example, you might ask a question like "How do non-techies edit Jamstack websites?"
So many simple implementations require a GUI because people won’t touch json. This is not a matter of capability, but willingness.