Rollup merge of #33095 - xogeny:xogeny-patch-1, r=steveklabnik

Rollup merge of #33095 - xogeny:xogeny-patch-1, r=steveklabnik

Tweaks to sections related to Ownership

Reading through these sections, I thought the intro text could be improved slightly.  So
here is a PR that addresses what was bugging me about it. :-)

Main issue was the wording of the opening sentence ("guide" is not clearly defined and the
wording was a bit too terse in my opinion).  I also took issue with the term "one of the most
unique".  Uniqueness is a `bool`, not an `f64`. :-)

r? @steveklabnik