Adding a link to the getting started guide at the SDL module (#182)

Author: soupi

README.md

@@ -1,3 +1,20 @@
+This package provides Haskell bindings for the SDL2 library.
+
+# What is SDL2?
+
+SDL (Simple DirectMedia Layer) is a library for cross-platform development of interactive applications.
+SDL provides routines for managing windows, rendering graphics, processing sound, collecting input data, and much more.
+
+The Haskell sdl2 library provides both a high- and low-level API to interface with SDL.
+
+You may also want to check out:
+
+- [sdl2-image](https://hackage.haskell.org/package/sdl2-image) - For handling different image formats such as `jpg` and `png`.
+- [sdl2-mixer](https://hackage.haskell.org/package/sdl2-mixer) - For playing audio.
+- [sdl2-gfx](https://hackage.haskell.org/package/sdl2-gfx) - For drawing graphics primitives such as circles and polygons.
+- [sdl2-ttf](https://hackage.haskell.org/package/sdl2-ttf) - For handling true type fonts.
+
+
 # Building
 
 [![Build Status](https://travis-ci.org/haskell-game/sdl2.svg?branch=master)](https://travis-ci.org/haskell-game/sdl2)
@@ -18,6 +35,10 @@ On Windows you can install SDL with `pacman` under [MSYS2](https://msys2.github.
 
     pacman -S mingw-w64-x86_64-pkg-config mingw-w64-x86_64-SDL2
 
+# Get Started
+
+Take a look at the [getting started guide](https://hackage.haskell.org/package/sdl2/docs/SDL.html).
+
 # Contributing
 
 We need your help! The SDL API is fairly large, and the more hands we have, the

sdl2.cabal

@@ -12,6 +12,8 @@ description:
   Haskell FFI calls. As such, this does not contain sum types nor error
   checking. Thus this namespace is suitable for building your own abstraction
   over SDL, but is not recommended for day-to-day programming.
+  .
+  Read "SDL" for a getting started guide.
 
 license:             BSD3
 license-file:        LICENSE