If you want to contribute to the website, make sure the problem you're trying to fix or the feature you want to implement has been discussed in our issue tracker and that we are interested in reviewing and merging such a contribution.
To discuss maintenance of this site, please come talk to the team in #matrix.org-website:matrix.org.
Install Zola, clone the repo, and from the root of the repo type
zola serve
Zola will build the website and start a web server, usually at http://127.0.0.1:1111