fix: consistent use of the term "tag" (#139)

* fix: consistent use of the term "tag"

Signed-off-by: Thomas Fossati <[email protected]>

draft-ietf-rats-msg-wrap.md

@@ -226,19 +226,15 @@ Future specifications may add new values to the `ind` field; see {{iana-ind-ext}
 
 ## CMW CBOR Tags {#cbor-tag}
 
-CBOR Tags used as CMW are derived from CoAP Content-Format numbers.
-If a CoAP content format exists for a RATS conceptual message, the
-`TN()` transform defined in {{Appendix B of RFC9277}} is used to
-derive a corresponding CBOR tag in range \[1668546817, 1668612095\].
+CMW of type CBOR Tag derive their tag numbers from a corresponding CoAP Content-Format ID using the `TN()` transform defined in {{Appendix B of RFC9277}}.
+Such CBOR tag numbers are in range \[1668546817, 1668612095\].
 
-The RATS conceptual message is first serialized according to the
-Content-Format number associated with the CBOR tag and then encoded as a
-CBOR byte string, to which the tag is prepended.
+The RATS conceptual message is first serialized according to the Content-Format ID and then encoded as a CBOR byte string, to which the TN-derived tag number is prepended.
 
 The CMW CBOR Tag is defined in {{fig-cddl-cbor-tag}} using two different macros.
-One for "native" CBOR types, the other for all other types.
+One for CBOR-encoded types, the other for all other types.
 Both macros take the CBOR tag number `tn` as a parameter.
-The `cbor-tagged-cbor` macro also takes the CDDL definition of the associated conceptual message `fmt` as a second parameter.
+The `cbor-tagged-cbor` macro takes the CDDL definition of the associated conceptual message `fmt` as a second parameter.
 
 ~~~ cddl
 {::include cddl/cmw-cbor-tag.cddl}