Update the README and add "Why should I use Glium instead of raw OpenGL calls?"
Update the README and add "Why should I use Glium instead of raw OpenGL calls?"

carbidegames/glium,TyOverby/glium,rozaliev/glium,binsoftware/glium,msiglreith/glium,tomaka/glium,cpjreynolds/glium,nicokoch/glium,caldwell/glium,bvssvni/glium,sdotz/glium,acolley/glium,christopheraugustus/glium,glium/glium