The openSUSE project aims to provide the highest quality documentation.
This wiki is edited and refined by our community. There are also more traditional manuals at doc.opensuse.org and release notes. People can contribute via the github doc-o-o repository.
Anyone can contribute to the Wiki. Have a look at the Wiki help pages and if you have an extra interest in wiki maintenance, join the Wiki team.
There is a list of available manuals that you can contribute to and help to localize.