...Or you could actually read this section with the helpful title because it explains the reason! To wit:
If you're selling your first project, then your page may be placed in our review queue. New sellers are reviewed before their projects are elgible[sic] for indexing. This proces[sic] may take a few days. Please contact us only after you've waited at least one day.
Briefly: your project is three days old! It's unlikely to be indexed so soon. Oh, and it's the weekend.