This is the Wiki for LewMC projects, found at wiki.lewmc.net
You can download JetBrains Writerside from https://www.jetbrains.com/writerside/, it's currently free during early access.
You can then create a new project from VCS and enter https://github.com/lewmc/wiki to download the project, edit it and create pull requests.
Download the project using Git, all pages are in the /Writerside/topics
directory. Files follow a mostly md syntax, with a few extras that are Writerside specific. You can learn more on the Writerside docs if you'd like to use these extra features.