vGPU-post: Add some CLI docs

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>
s/VGX/GRID/ in title (VGX now deprecated term)

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>
Add comment on partners

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>
Corrected some typos

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>
Remove TODO for ocaml-pci-db

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>
Link to release landing page

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>
Edit: demu is not open source!

Signed-off-by: Si Beaumont <simon.beaumont@citrix.com>