Correct description of samewith
Correct description of samewith

The docs previously stated that samewith calls the same multi _candidate_,
but samewith calls the entire multi.  This commit corrects that, and adds an
example that illustrates samewith's behavior.
MasterDuke17/doc,MasterDuke17/doc,MasterDuke17/doc,tbrowder/doc,tbrowder/doc,MasterDuke17/doc,tbrowder/doc,tbrowder/doc