Release lock for garage gate opener, security emergency garage door release lock with Extra long 8,2 foot (2,5 meters) cable

Just installed it and it works as promised. It would have been nice if it came with some instructions. I assume I installed correctly with the locking washer on the inside of the door, also any recommendation as to how to connect to release lever on garage door opener would have been appreciated, I hope I did it correctly.

it is ok