Added possibility to set driver interface attribute for nic

PROD-36097

Change-Id: I3ed0e5b1679f0904f54e663425628db7bd615a6d
diff --git a/README.rst b/README.rst
index a14d847..97910c9 100644
--- a/README.rst
+++ b/README.rst
@@ -449,6 +449,13 @@
         - name: nic04
           bridge: br-public
           model: virtio
+          driver:
+            name: vhost
+            # Optional value. If not set - equal to quantity CPU of VM
+            queues: '2'
+            # Optional values. Must be a power of 2 between 256 and 1024
+            tx_queue_size: '1024'
+            rx_queue_size: '1024'
         - name: nic05
           bridge: br-prv
           model: virtio