Recently, NautArch edited my answer and "Adjusted headers for screenreader readability".
Largely this consisted of changing the one-hashtag heading [#] to two hashtags [##] and then progressively adding one further to each of the sub-headings.
A bit before that, V2Blast "fixed header formatting (for accessibility)" in my answer. This included removing bolding [** **] for subsection headers and replacing it with hashtags [###].
I appreciate these edits, but what would be even better would be a style guide explaining what format I should have used to begin with, so that I was not occupying the valued time of site editors.
The Markdown help page explains what we can do, but I think we need a page showing what we should do, and if one does not already exist, then perhaps here as a community wiki answer to this question.
In the course of the auto-review of this question, Use real headers instead of fake headers was suggested as a similar question (although I did not see it in my initial searches on "screenreader" and "readability"). That's one suggestion, but could we have a compiled list of them, linked to the individual how's and why's?