[ACM-8471]: Adding disconnected HCP diagram and text

Author: lahinson

Diff for: clusters/hosted_control_planes/configure_hosted_disconnected.adoc

@@ -12,7 +12,7 @@ When you provision hosted control planes on bare metal, you use the Agent platfo
 
 The following diagram illustrates an example architecture of a disconnected environment:
 
-// ADD DIAGRAM HERE. For a draft of the diagram, see https://deploy-preview-3008--hypershift-docs.netlify.app/reference/architecture/mce-and-agent/
+image:../images/489_RHACM_HyperShift_on_bare_metal_1223.png[Disconnected architecture diagram]
 
 . The user configures infrastructure services, including the Registry certificate, web server, and DNS, to ensure that the disconnected deployment works.
 . The user creates a config map in the `openshift-config` namespace. In this example, the config map is named `registry-config`. The content of the config map is the Registry CA certificate.