Update draft-ietf-quic-multipath.md

Co-authored-by: Quentin De Coninck <[email protected]>

draft-ietf-quic-multipath.md

@@ -153,9 +153,15 @@ particular, the multipath extension supports the following scenarios.
     several ones.
   * The client uses multiple IP addresses and the server listens on
     several ones.
-
-The client can use one or several ports per IP address and the
-server can listen on one ore several ports per IP address. 
+    * The client uses only one IP address and the server
+      listens on only one.
+
+Note that in the last scenario, it still remains possible to have
+multiple paths over the connection, given that a path is not only
+defined by the IP addresses being used, but also the port numbers.
+In particular, the client can use one or several ports per IP
+address and the server can listen on one or several ports per IP
+address.
 
 This proposal does not cover address discovery and management. Addresses
 and the actual decision process to setup or tear down paths are assumed