Clarified that the guest VM restrictions apply specifically to AMD SEV-SNP confidential computing VMs, not standard VMs, and retitled the section accordingly.
Added SUSE Linux 16.O as supported host and guest operating systems.
Revised the supported hosts of SLES 16: a SLE 12 SP5 host can install a SLES 16 guest only using virt-manager.
Added SUSE Virtualization (Harvester) as a supported KVM host; added SLES 16.0 as a supported guest.
Initial version