Latest commit b8d2455 Jan 16, 2017 @russellb russellb vlan.rst: Strip leftover HTML.
Strip a couple of closing HTML tags that were left over from when this doc
was converted from the web site to RST.

Signed-off-by: Russell Bryant <russell@ovn.org>
Acked-by: Ben Pfaff <blp@ovn.org>