Please post issues on https://framagit.org/luc/dolomon/issues.
Submit a patch
Please, always work on the development branch if it exists (it's the beginning of Dolomon, so there isn't a dev branch right now, so you can work on master branch, but that will change with its first official release)
Add a new language
Go to https://trad.framasoft.org/, create an account, join the language team you want or post an issue to be added to the Dolomon project and start translating on https://trad.framasoft.org/zanata/project/view/dolomon. If the language you want to add has no team, please, post an issue.
You can now go back to wiki's homepage.