[Haskell-cafe] cabal-install bootstrap.sh

[cwr at netcom.co.uk]

I've just spent most of a morning trying to get bootstrap.sh
from the cabal-install package to work. The trick is to use
"ghc-pkg init pathname" to initialise the package file - simply
adding an empty package file or directory doesn't work.

Whoever is responsible for cabal-install, could you please
update the README to reflect this requirement.

Thanks - Will