You are nearly there! You can find the Shopkeepers wiki here.
BukkitDev Page: https://dev.bukkit.org/projects/shopkeepers
Wiki: https://github.com/Shopkeepers/Shopkeepers-Wiki/wiki
Translations : https://github.com/Shopkeepers/Translations/
Issue Tracker: https://github.com/Shopkeepers/Shopkeepers/issues
Discord Server: https://discord.gg/d9NKd5z
Source code: https://github.com/Shopkeepers/Shopkeepers/