redirect to top of "API Reference" page

instead of directly to https://conforma.dev/docs/ecc/reference.html#k8s-api-github-com-conforma-crds-api-v1alpha1-enterprisecontractpolicy

resolves: EC-1650

Co-authored-by: Simon Baird <simon.baird@gmail.com>

Author: dheerajodha

docs/modules/ROOT/pages/configuration.adoc

@@ -20,7 +20,7 @@ ec validate image --policy '{
 ----
 
 The configuration can be provided as a reference to a
-xref:ecc:ROOT:reference.adoc#k8s-api-github-com-enterprise-contract-enterprise-contract-controller-api-v1alpha1-enterprisecontractpolicy[EnterpriseContractPolicy] Kubernetes custom
+xref:ecc:ROOT:reference.adoc[EnterpriseContractPolicy] Kubernetes custom
 resource by either name (e.g. "my-policy") in the current namespace, or by
 providing namespace and the name separaded by slash (`/`) character, such as in
 this example: