How do I connect the edge connectors on the PCB to a breadboard?
I actually have one of these, and it is meant to be just an evaluation board, so you aren't going to find any standard mounting setup.  I just used 30 AWG wire soldered from the board to my circuit.

These connections are meant to be breakouts that you can connect to a test board by soldering wires.  I think they are 0.1" spaced, but because of the way they are using only 1/2 of a hole, I would be careful not to put any mechanical force on those connections.  Big thick wires or connectors could fairly easily remove those pads if lateral forces were applied.