v0.2.3

Changelog

• db79040 add more usage in show command
• a67a070 clean up defaults
• 7bc722c adjust the output sequence
• bc86c99 display config file used at Info instead of Debug level
• f7eb41c Merge pull request #11 from afbjorklund/ssh-config
• 627d86b Merge pull request #14 from afbjorklund/docker-version
• 99dfd7a Use docker version instead of docker info
• 94f539e Add ssh config output format for ssh.config