Introduce the idea in one sentance.
An elevator pitch that signals the reader to continue or not (keep looking for relavant page).
Front end is yours
Separate sections/sub-sections (h2s/h3s) consistently. This will build the ToC.
Next actions to take that are intentional versus simply additional reading.
Code examples and snippets.
Tips, post scriptum, creative links.
Link to related ideas/topics/guides/recipes.