doc: don't hard-wrap markdown
doc: don't hard-wrap markdown

In keeping with the convention I've moved towards
over the last 6 months.

wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent