To install, download and unzip. Copy the entire TradeUI_GitHub_FullMod folder into your Rimworld/Mods directory. Ex: C:\Program Files (x86)\RimWorld\Mods\
Launch RimWorld. Enable "Trade UI Revised" from the Mod menu
Note, the GitHub mod will NOT auto update. If you want to install a newer release from GitHub, simply delete the previous mod and copy the new folder into \RimWorld\Mods again
Updates!
Added Rimworld v1.6 support