Issue on docs, incorrect command for adding ssh-key #960

Path: /cli/hello-world

vastai create ssh-key ~/.ssh/id_ed25519.pub

This creates an ssh key with contents being the literal string of /home/<user>/.ssh/id_ed2.... in the vastai client installed on linux using curl -fsSL https://vast.ai/install.sh | bash.

I don't know if this is a client bug, and it should load a file, or if this is a docs issue, and it should show something like

vastai create ssh-key "$(cat ~/.ssh/id_ed25519.pub)"

Which does actually work