Update draft-ietf-quic-recovery.md

Author: ianswett

draft-ietf-quic-recovery.md

@@ -241,7 +241,7 @@ underestimation of min RTT, which in turn prevents underestimating smoothed RTT.
 Ack-based loss detection implements the spirit of TCP's Fast Retransmit
 {{?RFC5681}}, Early Retransmit {{?RFC5827}}, FACK, SACK loss recovery
 {{?RFC6675}}, and RACK. This section provides an overview of how these
-algorithms are implemented in QUIC.  Though both time-based loss detection
+algorithms are implemented in QUIC.  Though both time threshold loss detection
 and early retransmit use a timer, they are part of ack-based detection because
 they do not use a timer to send probes, but rather to declare packets lost.