If you have a fixed eye on the ends of your ridgeline, then just use that loop on each end to form a larks-head knot around the whoopie sling (where it exits the hammock end channel).
If there are no loops on the end of your ridgeline, then either create them with a splice or tie a loop to create one.
“I think that when the lies are all told and forgot the truth will be there yet. It dont move about from place to place and it dont change from time to time. You cant corrupt it any more than you can salt salt.” - Cormac McCarthy