added README

README

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+SFW (SDL Framework)
+===================
+
+SFW is a library of C++ objects that facilitate the creation of SDL projects.
+It is modeled after PGFW, a Pygame framework, which is an older project of mine.
+It is currently in an early untested stage, but it comes with a simple program
+that demonstrates how the framework can help set up a project in both SDL and
+OpenGL contexts.
+
+Requirements
+------------
+
+The SFW source comes with a few libraries in the lib/ folder, but there are
+other libraries that must be present in order to compile a project which uses
+the framework
+
+- libSDL2 (developed with 2.0.9)
+- libSDL2-image
+- libSDL2-ttf
+- libSDL2-mixer
+- Open GL
+- compiler that supports C++17
+
+Demo
+----
+
+The demo/ folder contains a simple cube demo.  The main purpose of the demo is
+to demonstrate switching between 3D and 2D contexts.  In order to compile the
+demo, you will have to edit the paths in the Makefile to point to the locations
+of the necessary libraries on your system.
+
+License
+-------
+
+This software is dedicated to the public domain.  See
+http://creativecommons.org/publicdomain/zero/1.0/ for details.
+
+Contact
+-------
+
+You can email me at frank at shampoo.ooo