My radiator expansion tank came in yesterday but the instructions aren't very helpful... or It might just be me

. Anyhow, i do not understand where or how I'm suppose to route the vent tube.....
Here are the instructions that came with the tank:
And if I'm not mistaken this is how i think the vent tube should be routed... Along the side of the tank somehow, and above the water line. TRUE ?
It fits nicely: