Update draft-ietf-uta-tls13-iot-profile.md

Co-authored-by: Thomas Fossati <[email protected]>

draft-ietf-uta-tls13-iot-profile.md

@@ -120,7 +120,7 @@ applicable to the new version of TLS/DTLS anymore. The following features change
 with the transition from TLS 1.2 to 1.3:
 
 - TLS 1.3 introduced the concept of post-handshake authentication messages, which
-partially replaced the need for the re-negotiation feature {{!RFC5746}} available
+partially replaced the need for the re-negotiation feature {{?RFC5746}} available
 in earlier TLS versions. However, rekeying defined in Section 4.6.3 of TLS 1.3
 does not provide forward secrecy and post-handshake authentication defined in
 Section 4.6.2 of TLS 1.3 only offers client-to-server authentication.