[libvirt] [PATCH] doc: fix memory setting API documentation inconsistencies

[Nikolay Shirokovskiy]

Hi, everyone.

Patch series "vz: implement memory setting functions in driver" besides doing what it declares
also fixes inconsistency in documentation of domain API vs virsh CLI and somewhat biased to
vz case. I've hoped that core mantainers check this out but suddenly realized that 
they are not as nothing in subject invites them to do it. So this letter instead of
being an actual patch is an invitation for them to evaluate mentioned patch series
in part that corresponds to documentation.