Demo: use ModelKit with MLFlow

[bmicklea]

Lots of our users are working with MLFlow, but would like to see how to use ModelKits with it. Doing a short demo showing how a set of files saved in MLFlow can be turned into a ModelKit might help.

A blog or article would help too.

[bmicklea]

Ideally we would use an LLM for this so we could follow it with the runnable container demo. Minimally we can use the titanic xample from the notebook demo.