generate SSH key
> Enter a file in which to save the key (/c/Users/YOU/.ssh/id_ALGORITHM):[Press enter]
> Enter passphrase (empty for no passphrase): [Type a passphrase]
> Enter same passphrase again: [Type passphrase again]
> Enter a file in which to save the key (/c/Users/YOU/.ssh/id_ALGORITHM):[Press enter]
> Enter passphrase (empty for no passphrase): [Type a passphrase]
> Enter same passphrase again: [Type passphrase again]