What steps did you take and what happened?

Current documentation has a diagram of CRD relationships that's super helpful. A similar one for the ClusterClass and related new CRDs would helpful in understanding how the concepts map.

What did you expect to happen?

A diagram of relationships between ClusterClass and other objects exists in documentation. The CAEP has a sequence diagram, but not a relationship one.

Cluster API version

main

Kubernetes version

No response

Anything else you would like to add?

No response

Label(s) to be applied

/kind documentation
One or more /area label. See https://github.com/kubernetes-sigs/cluster-api/labels?q=area for the list of labels.