add back link to json normalization in the ocm spec.

On-behalf-of: Gerald Morrison (SAP) <gerald.morrison@sap.com>
Signed-off-by: Gerald Morrison (SAP) <gerald.morrison@sap.com>

Author: morrison-sap

content/docs/concepts/signing-and-verification-concept.md

@@ -56,7 +56,7 @@ OCM uses a two-layer approach to ensure consistent and reproducible digests:
 
 Before hashing, the component descriptor is normalized into a canonical form, eliminating any ambiguities
 that could cause the same logical descriptor to produce different digests. The default normalization
-algorithm (`jsonNormalisation/v4alpha1`) defines exactly how this canonical form is derived, ensuring
+algorithm ([`jsonNormalisation/v4alpha1`](https://github.com/open-component-model/ocm-spec/blob/main/doc/04-extensions/04-algorithms/component-descriptor-normalization-algorithms.md#normalization-algorithms)) defines exactly how this canonical form is derived, ensuring
 identical component descriptors always yield the same digest.
 
 #### Artifact Digest Normalization