cabal: Fix README path
cabal: Fix README path

Fuuzetsu/haddock,niteria/haddock,idontgetoutmuch/haddock,niteria/haddock,idontgetoutmuch/haddock,Fuuzetsu/haddock,Fuuzetsu/haddock,Helkafen/haddock,Helkafen/haddock,niteria/haddock,idontgetoutmuch/haddock,Helkafen/haddock,haskell/haddock,haskell/haddock,haskell/haddock,Fuuzetsu/haddock,haskell/haddock,haskell/haddock