There is a guide inside the archive explaining how you can add this unit in your game. Only two files to edit. 
The Lioness will be added in the current Lion unit, replacing 2 of the 3 males. If you want to have a Lioness only unit, I've also added a proper icon.
Warning, it's a RAR file
The Lioness will be added in the current Lion unit, replacing 2 of the 3 males. If you want to have a Lioness only unit, I've also added a proper icon.Warning, it's a RAR file