Markdown-ify README and add Travis-CI script

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>

1 files changed, 15 insertions, 0 deletions

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+The `unix` Package  [![Build Status](https://travis-ci.org/ghc/packages-unix.png?branch=master)](https://travis-ci.org/ghc/packages-unix)
+==================
+
+See [`unix` on Hackage](http://hackage.haskell.org/package/unix) for
+more information.
+
+Installing from Git
+-------------------
+
+To build this package using Cabal directly from Git, you must run
+`autoreconf -i` before the usual Cabal build steps (`cabal
+{configure,build,install}`). The program `autoreconf` is part of
+[GNU autoconf](http://www.gnu.org/software/autoconf/).  There is no
+need to run the `configure` script: `cabal configure` will do this for
+you.