Add SCRAPI reference

Signed-off-by: steve lasker <[email protected]>

draft-ietf-scitt-architecture.md

@@ -77,6 +77,7 @@ normative:
   RFC8392:
   COSWID: RFC9393
   I-D.draft-ietf-cose-merkle-tree-proofs: COMETRE
+  I-D.draft-ietf-scitt-scrapi: SCRAPI
 
   CWT_CLAIMS_COSE: I-D.ietf-cose-cwt-claims-in-headers
   IANA.cwt:
@@ -178,7 +179,7 @@ SCITT achieves this by having producers publish information in a Transparency Se
 # Exemplary Software Supply Chain (SSC) Use Cases
 
 To illustrate the applicability of the SCITT architecture and its messages this section details the exemplary context of software supply chain (SSC) use cases.
-The building blocks provided by the SCITT architecture and related documents (e.g., the SCITT Reference API) are not restricted to software supply chain use cases.
+The building blocks provided by the SCITT architecture and related documents (e.g., {{-SCRAPI}}) are not restricted to software supply chain use cases.
 Software supply chains serve as a useful application guidance and first usage scenario.
 
 ## Generic SSC Problem Statement