New (page-per-artifact) standard library doc examples are now editable and runnable

[Andrei Alexandrescu via Digitalmars-d-announce]

Following https://github.com/dlang/dlang.org/pull/1532, the new-style 
docs now also allow editing and running examples. Start at 
http://dlang.org/library-prerelease/ and go anywhere to check it out.

Thanks are due to Sönke Ludwig and Sebastian Wilzbach!

Andrei