The best way to build a documentation today. Easy to use, extensible & strong community support in case of problem.
As it's open-source, you can still contribute if you want a new feature / need a bugfix ! :)
Very nice tool! Keep going! :) With advanced layouts in the documentation files it gets a bit messy e.g. displaying multiple images, therefore I had to write my own CSS. Could be a future feature idea to also ship different layout options per default.
This is a very useful documentation web-app that I use personally for my tools that I build and those other tools that I didn't build and just use a lot.
I currently use Docusaurus on a daily basis for my website HelloJavaScript.info. The ease of use and clear documentation makes it easy for any level of developer to use the documentation framework.