[Edi]

The one that came with the game is up to date wrt the fort commands, but they are scattered all through the nation modding section. Download the Unofficial Reorganized Mod Manual v3.17 from the trhead linked in my sig, that has them all in their own subsection. The UORMM will become the official manual in the next patch, so taking a look at it will give you a headstart in using the new document.