Create Lessons & Reflections Document For pyrenew-flu-light Task

[AFg6K7h4fhy2]

This issue is of low priority and ought only to be completed once all other remaining open issues are completed.

The creation of a brief lessons and or reflections document on failed (as in much lower ROI for time) execution strategies for the completion of the (1) implement cfaepim in PyRenew as pyrenew-flu-light and (2) evaluate the similarity of pyrenew-flu-light and cfaepim process and on possible inadequacies in documentation (within cfaepim, Epidemia, and PyRenew) seems desired by other CFA members.