Broken link to PDF

[nickie]

The link to the PDF (http://community.haskell.org/~simonmar/par-tutorial.pdf) is broken.
Best regards,
Nikos.

[simonmar]

I will try to fix the link for posterity, but this material was a precursor to the book that is available online here: http://simonmar.github.io/pages/pcph.html

[snowmanzzz]

best to fix the link XD