More documentation

docs/add_net.md

@@ -2,12 +2,12 @@
 
 ## Name
 
-	`add_net`
+`add_net`
 
 ## Synopsis
 
 ```
-	add_net ${card} ${vlan} ${group} [{no_ula|isp=abc|no_isp}...]
+add_net ${card} ${vlan} ${group} [{no_ula|isp=abc|no_isp}...]
 ```
 
 ## Description
@@ -37,3 +37,12 @@ at this time.)
 The `isp=...` flag can be used to assign the specified subnet to be part
 of the `IA_PD` list for the specified ISP.  The `no_isp` flag can be used to
 skip provisioning the specified network with any ISP's DHCPv6 `IA_PD` request.
+
+This calls [`add_v4_net`](add_v4_net.md) and [`add_v6_net`](add_v6_net.md) and
+passes all of its arguments.
+
+## See Also
+
+ - [`add_v4_net`](add_v4_net.md)
+ - [`add_v6_net`](add_v6_net.md)
+ - [`add_vlan`](add_vlan.md)