Update processor types page

[abbycross]

Adding Nighthawk. cc: @dcmckayibm

• need dark-background version of pictogram (NOTE: will need to add later)
• verify verbiage for r1

[dcmckayibm]

r1 language is correct.

[dcmckayibm]

Abby and I discussed some slide wording changes to bring 120 qubits into the r1 designation and high level define NH as grid connectivity

[qiskit-bot]

One or more of the following people are relevant to this code:

• @abbycross
• @lerongil