What are you having trouble with? At this point just pull it into a VTT and you should be set, or at least you should see what you might do differently next time. That's what happened to me anyway the first time I tried.

You could put a grid on it but most VTTs have their own and it can be hard to line them up if you put your own on as well. On the other hand if someone decided to print it out instead of use it in a VTT they might appreciate a grid.