Share example for ceph_docker_no_proxy

#ceph_docker_no_proxy: "localhost,127.0.0.1"

Typo "to can use" reword the sentence - If you need to exclude some host for the proxy configuration to can use the vv

Note
When using a container registry reachable with a http or https proxy then you need to set the ceph_docker_http_proxy or ceph_docker_https_proxy variables in the group_vars/all.yml file.

ceph_docker_http_proxy: http://192.168.42.100:8080
ceph_docker_https_proxy: https://192.168.42.100:8080
If you need to exclude some host for the proxy configuration you can use the ceph_docker_no_proxy variable in the group_vars/all.yml file.

ceph_docker_no_proxy: "localhost,127.0.0.1"