Provide this functionality as a git subcommand

[I-Want-ToBelieve]

It's just like https://github.com/paulirish/git-open

ref:https://www.programmerall.com/article/1217890850/

[lucasnevespereira]

Thanks for the suggestion! A git user subcommand would be cool and feel native, like the git open you mentionned. But I'm unsure if it's worth the tradeoff, I think commands like git user ssh guide would get quite long compared to gituser ssh guide.

Still thinking about it, open to discussion!