Implementation of Wiki in IT department

Today, analyzing a bunch of documentation and instructions, of our technical department, I realized that sooner or later, documents scattered in folders on shared drives are constantly updated with new information. With the advent of new tasks for the department, this information no longer fits into the sorting logic of old folders, and it is very difficult for a new person to quickly find the documentation he needs. And then I remembered from WiKi technology ... and realized what a powerful tool it gives us in our hands !!! but unfortunately I have no experience in its implementation. For this purpose, and created this post. Contact people with experience implementing WiKi in a large technical department. I would like to hear your recommendations and tips.
UPD!
Thinking more about the issue of integration in AD! relieve employees of unnecessary problems.