Add deprecation message to README

README.markdown

@@ -1,97 +1,2 @@
-# Literate Haskell support for GitHub's Markdown flavor
-
-> `pandoc-unlit` allows you to have a `README.markdown`, that at the same
-> time is a *literate Haskell* program.
-
-The following steps show how to set things up, so that:
-
- * The Haskell code in your README.markdown gets syntax highlighted on GitHub
- * You can run your literate Haskell within GHCi
- * You can create a Cabal `test-suite` from your `README.markdown` (No broken
-   code examples anymore. *Yeah!*)
-
-### 1. Install `pandoc-unlit`
-
-    $ cabal update && cabal install pandoc-unlit
-
-
-### 2. Create a `README.markdown`
-
-
-    # nifty-library: Do nifty things (effortlessly!)
-
-    Here is a basic example:
-
-    ~~~ {.haskell .literate}
-    main :: IO ()
-    main = putStrLn "That was easy!"
-    ~~~
-
-    And here is some code that looks nice, but does not yet work:
-
-    ~~~ {.haskell}
-    main :: IO ()
-    main = launchMissiles
-    ~~~
-
-We use fenced code blocks here.  They are supported by both, GitHub's README
-renderer, and Pandoc.
-
-All code blocks with class `.haskell` are syntax highlighted on GitHub
-([like so](https://github.com/sol/pandoc-unlit/blob/master/example/README.markdown#readme)).
-
-All code blocks with classes `.haskell` and `.literate` are part of the
-literate program.
-
-### 3. Create a symbolic link `README.lhs -> README.markdown`
-
-    $ ln -s README.markdown README.lhs
-
-### 4. Run yor code
-
-At this point we can load the code into GHCi:
-
-    $ ghci -pgmLpandoc-unlit README.lhs
-    *Main> main
-    That was easy!
-
-Or better yet, pipe the required flag into a `.ghci` file, and forget about it:
-
-```
-$ echo ':set -pgmLpandoc-unlit' > .ghci
-```
-```
-$ ghci README.lhs
-*Main> main
-That was easy!
-```
-
-### 5. Create a Cabal `test-suite`
-
-```
-name:             nifty-library
-version:          0.0.0
-build-type:       Simple
-cabal-version:    >= 1.8
-
-library
-  -- nothing here yet
-
-test-suite readme
-  type:           exitcode-stdio-1.0
-  main-is:        README.lhs
-  build-depends:  base
-  ghc-options:    -pgmL pandoc-unlit
-```
-
-Run it like so:
-
-    $ cabal configure --enable-tests && cabal build && cabal test
-
-## Real world examples
-
- * [attoparsec-parsec](https://github.com/sol/attoparsec-parsec#readme)
- * [hspec-expectations](https://github.com/sol/hspec-expectations#readme)
- * [wai](https://github.com/yesodweb/wai/tree/master/wai#readme)
-
-That's it, have fun!
+This package is deprecated.  Use
+[markdown-unlit](https://github.com/sol/markdown-unlit) instead.