Documentation Updates

[zm711]

Based on your maintenance discussion meeting and related to #301 we need to improve documentation around what the wiring maps mean. NN refers to neuronexus adaptor. We also created a mapping for cambridge neurotech adaptor that I will submit a PR for shortly. @chrishalcrow

Finally we decided (and confirmed) that the map based on chips out for RH2132 (ie the microchip faces should point away from each other) and that for one RH2164 chip that the microchip should face up/toward the female adaptor connectors. Maybe discuss with @h-mayorquin about a design to illustrate these principles.

[h-mayorquin]

Happy to learn more about this and help with any visualization effort!