Update index.html (#277)

index.html

@@ -572,9 +572,7 @@ <h2 id="securing-vcs-with-cose">Securing JSON-LD Verifiable Credentials with COS
  The unsecured verifiable credential is the unencoded COSE_Sign1 payload.
  </p>
  <p>
- The <code>typ</code> header parameter SHOULD be <code>application/vc+ld+json+cose</code>.
- See <a href="https://www.ietf.org/archive/id/draft-ietf-cose-typ-header-parameter-03.html">I-D.ietf-cose-typ-header-parameter</a>
- for the COSE "<code>typ</code>" (type) header parameter.
+ The <code>typ</code> header parameter as described in <a data-cite="RFC9596#section-2">COSE "typ" (type) Header Parameter</a> SHOULD be <code>application/vc+ld+json+cose</code>.
  When present, the <code>content type (3)</code> header parameter
  SHOULD be <code>application/vc+ld+json</code>.
  See <a data-cite="RFC9052#section-3.1">Common COSE Header Parameters</a> for additional details.