VirtHCK: Add README.md to RemoteHCK.
VirtHCK: Add README.md to RemoteHCK.

Signed-off-by: Leonid Bloch <3a22e9cf704854296e65b3541097a97e3000b637@daynix.com>

daynix/VirtHCK,igord-daynix/VirtHCK,sameehj/VirtHCK