Website link in README.md points to non-functional web page

[ddomgn]

When http://caca.zoy.org/wiki/zzuf is clicked in the README.md "503 - Service Not Available" error message is shown.

[JulianVolodia]

Cannot reproduce now, probably fixed.

[ddomgn]

Cannot reproduce now, probably fixed.

Yes, it works for me now.

[JulianVolodia]

@samhocevar ready to close.