Translating the addon.
To become a translator, you must be fluent in English and the language you are translating into, and you must be available to translate the addon for future updates if necessary.
To start, ensure your language has not already been added to the addon. If not, go into wizardry/lua/wizardry/languages and take the file sh_en.lua, copy it, ensure it's named correctly, and just begin translating. Once done, DM me with the file and I'll take a look at it. If all is in order, I'll add it to the addon in an update and place your name in the credits as a translator.
If you don't own the addon, you may obtain a copy of sh_en.lua here.