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.
'neighbour' is a word that is pretty embedded in the vocabulary of this space; I would probably explicitly call out in the first paragraph of this section that two solutions are 'neighbours' by virtue of getting there by 'hopping' directly from one to another in the search strategy.