And make the existing docs easier to parse.
In particular, document the interaction with relocations.
Change-Id: I97579f88d9248c12e64af723a946959b88d4b674
Reviewed-on: https://go-review.googlesource.com/c/go/+/351112
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>