renamed HListIso => HList in readme.md
renamed HListIso => HList in readme.md

fthomas/shapeless,malcolmgreaves/shapeless,triggerNZ/shapeless,alexarchambault/shapeless,lambdista/shapeless,tek/shapeless,notxcain/shapeless,khronnuz/shapeless,wheaties/shapeless,lukasz-golebiewski/shapeless,Atry/shapeless,TomasMikula/shapeless,joescii/shapeless,clhodapp/shapeless,liff/shapeless,roberth/shapeless,isaka/shapeless,milessabin/shapeless