Simon Willison’s Weblog

Looking for a modern day wiki for a group project

11th April 2017

My answer to Looking for a modern day wiki for a group project on Ask MetaFilter

GitHub offers a wiki for each repository. It’s free for public projects (no need to upload any code, just create a repo and ignore the other tabs) of you can pay $7 monthly for private ones.

With public wikis you can still control which users are allowed to make edits.

https://help.github.com/articles/about-github-wikis/

The only missing feature in your list is WYSIWYG editing, but they do offer a good “preview” tab.