Public API is no longer operating

[dragospe]

According to realworld-apps/realworld#1611, the public Real World API isn't maintained any more.

Took me a couple of tries to figure out that the issue wasn't on my end. I think we should at least put a banner in the README that the setup instructions won't work any more (since it points to the public API by default).

Looking at the README for RealWorld itself, it point to codebase which contains implementation of the backend, including in Haskell. Maybe we drop a link here as well?

[thomashoneyman]

I’d be happy to accept a PR that adds a note that the public API no longer works, but you can point to an alternate backend like the Haskell one. Thanks for the heads up!