Suggestion : Embed Discussion to Documentation Page
Referring to Vanilla Documentation especially topics listed under header Developer Documentation, I would like to suggest that each of those topics are embedded a thread of discussion.
Readers could point out outdated information or mistakes, so even if the docs itself is not updated people could look for corrections in discussion.
Members could provide additional detail, including screenshots, diagrams, pre-requisites, further clarification, etc.
Just my two cents.