docs: bridge: add other features

Add some features that are not appropriate for the existing section to
the "Others" part of the bridge document.
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

Documentation/networking/bridge.rst

@@ -287,6 +287,20 @@ So, br_netfilter is only needed if users, for some reason, need to use
 ip(6)tables to filter packets forwarded by the bridge, or NAT bridged
 traffic. For pure link layer filtering, this module isn't needed.
 
+Other Features
+==============
+
+The Linux bridge also supports `IEEE 802.11 Proxy ARP
+<https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=958501163ddd6ea22a98f94fa0e7ce6d4734e5c4>`_,
+`Media Redundancy Protocol (MRP)
+<https://lore.kernel.org/netdev/20200426132208.3232-1-horatiu.vultur@microchip.com/>`_,
+`Media Redundancy Protocol (MRP) LC mode
+<https://lore.kernel.org/r/20201124082525.273820-1-horatiu.vultur@microchip.com>`_,
+`IEEE 802.1X port authentication
+<https://lore.kernel.org/netdev/20220218155148.2329797-1-schultz.hans+netdev@gmail.com/>`_,
+and `MAC Authentication Bypass (MAB)
+<https://lore.kernel.org/netdev/20221101193922.2125323-2-idosch@nvidia.com/>`_.
+
 FAQ
 ===