Move Connection URL section into Session (#751)

I'm not sure it says anything useful, and is somewhat confusing in my
opinion, but moving it for now.

draft-ietf-moq-transport.md

@@ -434,13 +434,6 @@ the ones defined by HTTP ({{?RFC9110, Section 10}}); if, at a given
 moment in time, two tracks within the same scope contain different data,
 they have to have different names and/or namespaces.
 
-### Connection URL
-
-Each track MAY have one or more associated connection URLs specifying
-network hosts through which a track may be accessed. The syntax of the
-Connection URL and the associated connection setup procedures are
-specific to the underlying transport protocol usage {{session}}.
-
 
 # Sessions {#session}
 
@@ -493,6 +486,13 @@ PATH parameter ({{path}}) which is sent in the CLIENT_SETUP message at the
 start of the session.  The ALPN value {{!RFC7301}} used by the protocol
 is `moq-00`.
 
+### Connection URL
+
+Each track MAY have one or more associated connection URLs specifying
+network hosts through which a track may be accessed. The syntax of the
+Connection URL and the associated connection setup procedures are
+specific to the underlying transport protocol usage {{session}}.
+
 ## Version and Extension Negotiation {#version-negotiation}
 
 Endpoints use the exchange of Setup messages to negotiate the MOQT version and