Added README.

DotSDL.sln

@@ -6,6 +6,7 @@ MinimumVisualStudioVersion = 10.0.40219.1
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{53C506CE-9D99-4306-A304-D4B09924A883}"
 	ProjectSection(SolutionItems) = preProject
 		LICENSE.txt = LICENSE.txt
+		README.md = README.md
 	EndProjectSection
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DotSDL", "DotSDL\DotSDL.csproj", "{C645C551-C6A4-4312-BCAF-DF94B0EB878E}"

README.md

@@ -0,0 +1,31 @@
+# DotSDL
+
+_DotSDL_ is a .NET Standard library designed to allow easy access to the SDL2
+library using either the .NET Framework or .NET Core.
+
+Unlike SDL2#, _DotSDL_ is not a direct SDL wrapper. It attempts to add some
+additional functionality to make writing SDL applications easier.
+
+### Current Features
+
+At this time, DotSDL supports the following features:
+
+* Audio
+  * Support for all audio formats supported by SDL.
+  * Mono output.
+* Input
+  * Keyboard input.
+  * Window events.
+* Graphics
+  * A single 32-bit ARGB canvas (useful for simple pixel plotting).
+
+### How To Use DotSDL
+
+DotSDL is currently under heavy development and, as such, doesn't have much
+in the way of documentation. Currently, the best way to use it is to look over
+the sample/test projects and to read over the XMLDocs on the classes and
+methods.
+
+If you would still like to play around with DotSDL, the project can be built
+using Microsoft Visual Studio 2017. You will also need a SDL2.dll binary for
+each architecture that you plan to build your project against.