docs: update cli doc
docs: update cli doc

Signed-off-by: Wataru Ishida <15703620d0b11e835ab4f34ebf88f2f40cce783e@lab.ntt.co.jp>

a16/gobgp,osrg/gobgp,a16/gobgp,ishidawataru/gobgp,a16/gobgp,tamihiro/gobgp,osrg/gobgp,ishidawataru/gobgp,osrg/gobgp,j-kato/gobgp,tamihiro/gobgp,fujita/gobgp,ishidawataru/gobgp,fujita/gobgp,tamihiro/gobgp,a16/gobgp,Dipsingh/gobgp,j-kato/gobgp,tamihiro/gobgp,Dipsingh/gobgp,fujita/gobgp,osrg/gobgp,a16/gobgp,fujita/gobgp,a16/gobgp,a16/gobgp,j-kato/gobgp,Dipsingh/gobgp