There's an experimental instance of Gerrit for KDE. Find it, discover the existing documentation about Gerrit, both generic and the KDE-specific one, and make sure that other people can find out how to contribute to KDE through Gerrit.

Focus on people who have never used Gerrit before.

The expected outcome is improved documentation on how to use Gerrit within KDE, especially the article at https://techbase.kde.org/Development/Gerrit.