Correct “copies” to “moves” in `<Option<T> as From<T>>::from` doc, and other copyediting#88648

Merged

bors merged 3 commits intorust-lang:masterfrom

Sep 8, 2021

Commits on Sep 4, 2021

“Moves” instead of “copies” in `<Option<T> as From<T>>::from` doc.
kpreid
committed
Add sentence punctuation and links in `Option` docs.
kpreid
committed
Clarify what “a container” is in `FromIterator<Option<A>> for Option<V>` doc.
kpreid
committed