Update draft-ietf-moq-transport.md

Co-authored-by: ianswett <ianswett@users.noreply.github.com>

draft-ietf-moq-transport.md

@@ -306,8 +306,8 @@ modify object payloads.
 
 A peep is a sequence of one or more objects and is a sub-unit of a group
 ({{model-group}}). A peep consists of a set of objects within a group that
-have a dependency and priority relationship consistent with sharing a QUIC
-stream.
+have a dependency and priority relationship benefitting from in-order delivery,
+and sharing a QUIC stream.
 
 When a Track's forwarding preference (see {{object-fields}}) is "Track" or
 "Datagram", Groups do not contain Peeps, no Peep IDs are assigned, and the