This command had no documentation so add it in.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com.
and will not be displayed as part of a `show run`. The no form
of the command turns off this ability.
+.. index:: [no] bgp default ipv4-unicast
+.. clicmd:: [no] bgp default ipv4-unicast
+
+ This command allows the user to specify that v4 peering is turned
+ on by default or not. This command defaults to on and is not displayed.
+ The `no bgp default ipv4-unicast` form of the command is displayed.
+
.. _bgp-peer-filtering:
Peer Filtering