feat: optional git suffix for remote URL. (#7)

refactor: minor changes.

fix: get the pull-request remote url from github

Instead of guessing the remote url from the pull-request owner and the
project name, let's use the pull-request information to get the owner
repository.

This fixes errors when the pull-request author fork doesn't match the
upstream project name.

Signed-off-by: Vincent Demeester <[email protected]>

feat: use '~/.config/prm' instead of '~/.prm'

feat: Fully interactive command.

doc: add new interactive commands.

feat: interactive actions.

feat: force no follow tags when push.

refactor: remove not needed var declaration.

chore: migrate to Dep.