In Testing section, you can add how to test documentation (getting sources from upstream project, getting zanata.ini, getting translated messages, building the documentation) as well as the required publican packages for doing so. You can also explain how to build a local repo to test software translations, or simple doing "sudo cp <lang-code>.mo /usr/share/locale/ca/LC_MESSAGES/<app>.mo".
A local repo is very usefull when you are trying to test Anaconda by making an installation media with pungi. [1]