Merge pull request #1894 from fluxcd/backport-1893-to-release/v1.7.x

[release/v1.7.x] Point to OCIRepository in HelmRepository docs

Author: matheuscscp

docs/spec/v1/helmrepositories.md

@@ -153,6 +153,9 @@ A HelmRepository also needs a
 
 Possible values are `default` for a Helm HTTP/S repository, or `oci` for an OCI Helm repository.
 
+**Note:**: For improved support for OCI Helm charts, please use the
+[`OCIRepository`](ocirepositories.md) API.
+
 ### Provider
 
 `.spec.provider` is an optional field that allows specifying an OIDC provider used