added note to man & cli docs on search limit
added note to man & cli docs on search limit

Signed-off-by: Nathan Hsieh <34dc93c29d288b2de05995179121e73857a82ac1@gmail.com>

allencloud/cli,e11137/cli,Zebrilee/cli,thaJeztah/cli,ashfall/cli,Zebrilee/cli,redpanda/cli,ashfall/cli,docker/cli,allencloud/cli,riyazdf/cli,riyazdf/cli,cpuguy83/cli,dnephin/cli,cpuguy83/cli,redpanda/cli,dnephin/cli,e11137/cli,thaJeztah/cli,docker/cli