feature: added -r option to connect to a remote repo on publication. This is a...

feature: added -r option to connect to a remote repo on publication. This is a one off -r and the repo must be empty as there's no way to resolve merges without mamanual and this might as well be done with git itself. Essentailly this is the usecase where you have started locally but then want to publish to a remote repo at some later point. If there's an existing repo with commits then you must start the phen init from th eexisting repo. Closes #35