Of the documents on the main RHOSO 18 docs page[1], all are represented in our RAG db except for the Release Notes. They often contain relevant information that will help answers be up to date with respect to new features or bugfixes, so should be included.

The Release Notes are not in the same repo[2] as the rest of the docs, and instead get auto-generated somewhere else. We need to find that and then somehow 

[1] https://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/

[2] https://gitlab.cee.redhat.com/rhci-documentation/docs-Red_Hat_Enterprise_Linux_OpenStack_Platform