Ask HN: Design and requirements docs generation

As a developer I've always despised having to spend countless hours manually drafting , formatting and getting requirements & design documents reviewed. In spite of the obvious value of maintaining a knowledge base of instructions and information for the future developers of the app, I have felt there is a way this can be improved. So all those hours of manual effort can be saved both for the developer and the company. I was looking for already existing solutions or software that automate or enhance the experience of creating such docs. Is there something that exists of this sort? Has this field been amply explored as per your opinion? Any thoughts on a solution on Design & requirements docs generation?