Daux.io is a static documentation generator that helps developers create beautiful and intuitive user manuals, software documentation, and other technical documents. It is designed to be fast and simple to use, with minimal setup required. It is powered by Markdown, a lightweight markup language, and is available as both a web application and a command line tool. The web application allows users to quickly and easily create and manage their documentation, while the command line tool provides an easier way to manage large projects. With its easy-to-use visual editor and intuitive user interface, Daux.io makes it easy for developers to create professional-looking documentation with minimal effort.
Wikitten is very lightweight and easy to use. I got it up and running in no time on my local PC (using Apache and PHP).