You can get a theme license by buying a theme through the Shopify theme store. Each theme license is valid only for the store it was purchased. If you've downloaded a theme from outside the Shopify theme store or imported one into a different store, it's unlicensed.
Using an unlicensed theme may lead to a DMCA takedown from Shopify resulting in your store being taken offline without notice.
Start by connecting your source repository and choosing the pages you want to publish.
You can then browse your documentation and ask questions about the content your team has shared.