Fix link to SYB paper in README
Fix link to SYB paper in README

The link to Simon Peyton Jones's paper on scrap your boilerplate seems to get re-directed to his home page. It looks like it used to point directly to the paper - is this the right link now?
lambdista/shapeless,wheaties/shapeless,milessabin/shapeless,isaka/shapeless,fthomas/shapeless