Put in the first draft of the flow-shop chapter text.

It remains incomplete, but the outline is there along with a large chunk of the intended content.

One question I had -- should the perspective when writing be personal singular ("I did foo") or plural ("we did fuu"). Currently it is the latter.
For sake of clarity, it might be helpful to explain a concrete example of a problem instance here. You could show an instance of the problem, and how two specific permutations of jobs have different total times.