COSE built-in maps cross-links to CDDL schema files (#6585)

doc/audit/builtin_maps.rst

@@ -478,7 +478,7 @@ COSE signatures emitted by the primary node over the root of the Merkle Tree at
 
 **Key** Sentinel value 0, represented as a little-endian 64-bit unsigned integer.
 
-**Value** Raw COSE Sign1 message as byte string with Merkle tree root as a detached payload.
+**Value** Raw COSE Sign1 message as byte string (DER-encoded). Implements the following :ccf_repo:`CDDL schema </cddl/ccf-merkle-tree-cose-signature.cddl>`.
 
 ``recovery_shares``
 ~~~~~~~~~~~~~~~~~~~
@@ -513,7 +513,7 @@ While the contents themselves are encrypted, the table is public so as to be acc
 
 **Key** Sentinel value 0, represented as a little-endian 64-bit unsigned integer.
 
-**Value** Endorsed COSE sign1 for the interface, represented as a DER-encoded string.
+**Value** Raw COSE Sign1 message as byte string (DER-encoded). Implements the following :ccf_repo:`CDDL schema </cddl/ccf-cose-endorsement-service-identity.cddl>`.
 
 
 ``previous_service_last_signed_root``