* ghcup: add page * Update pages/common/ghcup.md Co-authored-by: bl-ue <54780737+bl-ue@users.noreply.github.com> * Update pages/common/ghcup.md Co-authored-by: bl-ue <54780737+bl-ue@users.noreply.github.com> * Update ghcup.md * Update ghcup.md * Update pages/common/ghcup.md Co-authored-by: bl-ue <54780737+bl-ue@users.noreply.github.com> * Update ghcup.md Co-authored-by: bl-ue <54780737+bl-ue@users.noreply.github.com>