* more help text for commands * improved root help * fix typo Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> * updated examples for add cmd Co-authored-by: Sameen Karim <skarim@github.com> --------- Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>