Fix typo in JSON config example, in the CLI documetation
Fix typo in JSON config example, in the CLI documetation

Signed-off-by: Michał Czeraszkiewicz <4c1348c935e2323cf8521df29292aca7795bc025@gmail.com>

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