MonadUnliftIO typeclass for unlifting monads to IO; documentation

 Provides the core MonadUnliftIO typeclass, instances for base and
 transformers, and basic utility functions. Typically, you'll want
 to use the unliftio library, which provides more functionality (and
 a much better description).
 .
 This package provides the documentation for a library for the Haskell
 programming language.
 See http://www.haskell.org/ for more information on Haskell.