It is all about details. What you want to achieve is what we call a written culture. The only general advice that we can give you , will be pretty vague. Like

It is all about details. What you want to achieve is what we call a written culture. The only general advice that we can give you , will be pretty vague. Like get everyone to agree that it is important, start documenting yourself to lead by example, reference the documentation as much as possible when it exists, curate information so that out of date is marked at out of date, encourage your colleagues to document specific things, make the process about them and not about you. Changing culture is hard, and even harder when you don't have past experience doing it or not much support from your executives. I'm the founder of a product solving those issues, but I'll be the first to tell you that the tool doesn't matter a lot. Some are better than others, but none can balance a culture in which documentation has not a strong place. If you (or anyone reading that) want help to improve things in your company, I'll be happy to jump on a quick call with you (no trying to sell you anything, just advice in your specific case) reach out to me at paul at dokkument.com