Correct `ripngd` doc based on code, and remove one non-existed command.
Signed-off-by: anlan_cs <vic.lan@pica8.com>
Currently ripngd supports the following commands:
-.. clicmd:: router ripng
+.. clicmd:: router ripng [vrf NAME]
Enable RIPng.
-.. clicmd:: flush_timer TIME
-
- Set flush timer.
-
.. clicmd:: network NETWORK
Set RIPng enabled interface by NETWORK.
ripngd Terminal Mode Commands
=============================
-.. clicmd:: show ip ripng
+.. clicmd:: show ipv6 ripng [vrf NAME] status
.. clicmd:: show debugging ripng