add link

Author: sebbader-sap

documentation/IDTA-01002-3/modules/ROOT/pages/changelog.adoc

@@ -41,7 +41,7 @@ Minor Changes:
 * Clarification on how to handle duplicate query parameters
 * Replace "servers" clause in OpenAPI files
 * Add notes for base64url-encoded values and order of "assetIds" query parameters
-* Design Decisions for the HTTP API: Clarify that padding is not allowed for base64url-encoded values (https://github.com/admin-shell-io/aas-specs-api/issues/423[#423])
+* xref:http-rest-api/http-rest-api.adoc#design-decisions[Design Decisions for the HTTP API]: Clarify that padding is not allowed for base64url-encoded values (https://github.com/admin-shell-io/aas-specs-api/issues/423[#423])
 
 === Interface Changes w.r.t. V3.0.3 to V3.1
 

documentation/IDTA-01002-3/modules/ROOT/pages/http-rest-api/http-rest-api.adoc

@@ -52,6 +52,7 @@ https://app.swaggerhub.com/apis/Plattform_i40/DiscoveryServiceSpecification/V3.1
 
 This clause gives an overview of the HTTP/REST API and describes general design decisions.
 
+[#design-decisions]
 == Design Decisions
 
 The following design decisions and constraints hold for the HTTP/REST API: