The 0.1.0 entry described only the tell/stop pair, so the block form added in
87196bf would have shipped undocumented in the changelog users read on Hex.

Describe both forms and lead with the block form, matching the README, since
wrapping a call is the form most people will reach for first. Note that it
returns the wrapped call's result and cannot break the code it wraps, as those
are the properties that make it safe to drop into unfamiliar code.