Restructure packetization section

draft-ietf-quic-transport.md

@@ -2776,22 +2776,22 @@ actually lost.
 
 ### Special Considerations for Packetization Layer PMTU Discovery
 
-The PADDING frame provides a useful option for PMTU probe packets that does
-not exist in other transports. PADDING frames generate acknowledgements, but
-their content need not be delivered reliably. PADDING frames may delay the
-delivery of application data, as they consume the congestion window. However,
-by definition their likely loss in a probe packet does not require delay-
-inducing retransmission of application data.
+
+The PADDING frame provides a useful option for PMTU probe packets that does not
+exist in other transports. PADDING frames generate acknowledgements, but their
+content need not be delivered reliably. PADDING frames may delay the delivery of
+application data, as they consume the congestion window. However, by definition
+their likely loss in a probe packet does not require delay- inducing
+retransmission of application data.
 
 When implementing the algorithm in Section 7.2 of {{!RFC4821}}, the initial
 value of search_low SHOULD be consistent with the IPv6 minimum packet size.
 Paths that do not support this size cannot deliver Initial packets, and
 therefore are not QUIC-compliant.
 
 Section 7.3 of {{!RFC4821}} discusses tradeoffs between small and large
-increases in the size of probe packets. As QUIC probe packets need not
-contain application data, aggressive increases in probe size carry fewer
-consequences.
+increases in the size of probe packets. As QUIC probe packets need not contain
+application data, aggressive increases in probe size carry fewer consequences.
 
 
 # Streams: QUIC's Data Structuring Abstraction {#streams}