ergonaut.space is a community-driven site set up to help consolidate the vast wealth of information that is fragmented around the web. The site is backed up on Github automatically on a regular basis, to prevent data-loss/vandalism.
The site is written in Markdown, which is trivial to pick up (you might’ve already used it before without realising), but there is also a fully-fleshed visual editor which makes it even simpler.
Like mentioned above, there is a built-in visual editor which can side-step the need to format wiki content in Markdown, if you prefer. However, you may personally find it beneficial to pre-format content in Markdown and then simply upload it to the Ergonaut Handbook.
The platform supports several regional languages. The above information/tools should help anyone interested in adding a new regional language to the site.