Beginner question: How to connect to Navio2's camera

I’ve been looking at different ways to build a drone to stream to my laptop and do some image processing.

I looked at some examples here:

My question is basic: How do I connect wirelessly to the RPi 2 to do stream it? I assume I need a wireless adapter of some kind. I know this is pretty basic, but there seems to be a lack of tutorials for very basic questions like this with regards to drones.

Ok I found this section which seems to answer the question: