Hello, everyone. I am the creator/maintainer of the Spanish translation of The Swift Programming Language book. I'd like you to update the URL of the production site which is swiftbook.es
The link on the Swift.org site points to a non-production URL. This is the full production URL I'd like you to add: https://swiftbook.es
The documentation page contains:
If you know of a quality translation project underway, please let us know on the Compiler Development forums, and we'll provide a link to that project on this page.
However, the website is now open source, so you can create a pull request for your URL (and possibly also update/remove the quoted paragraph).
I just submitted a couple of PRs to add the link and have the paragraph updated.