Strip the ends of all wires and on one of the long wires, twist the end of the short wire in with it and crimp both together with the spade. Crimp spades on all other terminations. (see Niggle's pic below)
The short wire is a jumper between the top two terminals. the other long wire goes between screen and bottom terminal.
ETA - I presume you have a mk1. If not, you're probably best buying one for the job