update dockernetwork.md and network api
update dockernetwork.md and network api

Signed-off-by: Deng Guangxing <19218f58df7492b76278d72fee211ae249078a47@huawei.com>

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