Update GPU docs (#542)

Author: vishesh92

source/adminguide/hosts.rst

@@ -246,7 +246,7 @@ devices on a KVM host. The script is located in the
 ``/usr/share/cloudstack-common/scripts/vm/`` directory on the host. The script
 relies on the ``lspci`` & ``xmlstarlet`` command to discover the GPU devices
 and their status on the host. So, for the discovery to be successful, the
-``lspci`` & ``xmlstarlet`` commands needs to be installed on the host.
+``lspci`` & ``xmlstarlet`` should be installed on the host.
 
    .. parsed-literal::
 
@@ -266,7 +266,7 @@ and their status on the host. So, for the discovery to be successful, the
    ===============================   ==================   =======================
    Legacy: SR-IOV not supported      `mdev`                 Yes
    SR-IOV supported                  `mdev`                 Yes
-   SR-IOV supported                  `Vendor specific`      No
+   SR-IOV supported                  `Vendor specific`      Yes
    Multi Instance GPU                                       No
    ===============================   ==================   =======================
 

source/adminguide/service_offerings.rst

@@ -306,7 +306,9 @@ To create a new compute offering:
    -  **GPU Display**: Whether to use the GPU device attached to the guest instance for display.
       This is applicable only for KVM hypervisor. Depending on the OS and display configuration,
       the user might need to set ``video.hardware`` to ``none`` in the instance's settings to
-      use CPVM for display.
+      use CPVM for display. To set the ``video.hardware`` setting, navigate to
+      the instance's details page in the CloudStack UI, click on the
+      "Settings" tab, and add/or update the ``video.hardware`` setting to ``none``.
 
    -  **Public**: Indicate whether the compute offering should be
       available to all domains or only some domains. Choose Yes to make it