I have setup these switches also in different configs. The big difference is if you are using dimmers the Leviton ones need a hot line to both the master and add-on switches, unlike the GE’s that you can get away with just a traveler and neutral for the add-on switch.
You need to put the master switch in the box that has the load connection to the light. Then use one of the traveler wires to get your neutral to the second box for your remote add-on switch. Next pig tail off the hot line for the master switch. This will get you line(hot), load(light), neutral, traveler and ground in the Master Switch box and line(hot), traveler, neutral, and ground. in the box for the add-on switch.
The yellow line would be unused in this case also, not sure why that line is even needed accord to that diagram. Unless it is the ground in this case.