docs: added a bad readme

README.md

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+# Git Shell Commands
+did you know that you can push and pull to your repositories over ssh?
+`$ git clone <user>@<host>:<path>`
+
+and voila! self hosted repositories
+
+but that's kind of crude: interacting with such repo requires to ssh in
+
+## git shell
+git ships with a super simple shell (more [here](https://git-scm.com/docs/git-shell))
+
+creating a git user and dropping these command inside `git-shell-commands` (must live in git user's home) will allow to run them after ssh-ing:
+`$ ssh git@<host>`