doc: importing image centos/rhcos

Signed-off-by: Paul Bastide <[email protected]>

README.md

@@ -89,6 +89,25 @@ Q: The execution reports `No route to host` during setup of the cluster. I see:
 
 A: This indicates an issue with the networking routes. Please work with support to confirm your routes.
 
+Q: Do I need add images to my PowerVS workspace?
+
+A: Yes, as part of the setup, you will import from the RHCOS bucket.
+
+To import rhcos:
+
+```
+ibmcloud pi image-import rhcos-415-92-202312071243-t1
+       --bucket-access public --storage-pool Tier1-Flash-1
+       --bucket rhcos-powervs-images-us-east --region us-east --job --json --os-type rhel
+       --image-file-name rhcos-415-92-202312071243-0-ppc64le-powervs.ova.gz
+```
+
+To import the Centos stock image:
+
+```
+ibmcloud pi image-create CentOS-Stream-8
+```
+
 ## Contributing
 
 If you have any questions or issues you can create a new [issue here][issues].