doc:proxy-setting info added in pull cmd. Replace Note with a new secion, reduce characters in per line in 80. Add statement suggested by https://github.com/thaJeztah
doc:proxy-setting info added in pull cmd.
Replace Note with a new secion, reduce characters in
per line in 80. Add statement suggested by
https://github.com/thaJeztah

Signed-off-by: Lin Lu <4f5c10e28ecea5ad37d6370e2d78c4d090971202@163.com>

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