Merge pull request #392 from rackerlabs/update-cli-doc

docs: expand on projects and domains for cli doc

docs/user-guide/openstack-cli.md

@@ -60,10 +60,17 @@ clouds:
     protocol: openid
     auth:
       auth_url: https://your.endpoint.url/v3
-      project_domain_name: mydomain
+      project_domain_name: Default
       project_name: myproject
 ```
 
+<!-- markdownlint-capture -->
+<!-- markdownlint-disable MD046 -->
+!!! Note
+
+    The Ironic nodes will be in the `infra` domain and the `baremetal` project.
+<!-- markdownlint-restore -->
+
 With the above configuration in `$HOME/.config/openstack/clouds.yaml` you
 will be able to run the OpenStack CLI as follows: