Instructions for verifying tor source downloads

We have easy-to-find instructions about how to check torbrowser signatures, but not so with our other signed downloads. (As an exercise: pretend you are a new user, go to https://www.torproject.org/download/tor/ , and try to figure out where to get my public key.)

It would be good if we had a link about checking the signatures there too, including a link to the key.