No documentation for calibration or single shot

[matthewware]

We can't expect users to dig through the exp_factory code to have single shot work.

[dieris]

Something examples are available here. Working on something similar for 2-qubit gate tuneup

[matthewware]

I'm going to bump this. Now that there are active examples in the notebooks the need isn't that dire. On the other hand, I think things could still be improved.