Make the example match the documentation
Make the example match the documentation

the missing `driver` made my bridge not have the correct MTU when i copied from the example and not the doc table.  Brings them into alignment.

Signed-off-by: bryfry <987458a201e0b48f2d264fae942391fdd7699556@fryer.io>

ashfall/cli,dnephin/cli,Zebrilee/cli,cpuguy83/cli,redpanda/cli,Zebrilee/cli,docker/cli,dnephin/cli,ashfall/cli,cpuguy83/cli,thaJeztah/cli,redpanda/cli,thaJeztah/cli,allencloud/cli,allencloud/cli,docker/cli