mmap support for strict ByteStrings; documentation

 This library provides a wrapper to mmap(2), allowing files or
 devices to be lazily loaded into memory as strict or lazy
 ByteStrings, using the virtual memory subsystem to do on-demand
 loading.
 .
 This package provides the documentation for a library for the Haskell
 programming language.
 See http://www.haskell.org/ for more information on Haskell.