Add a small OpenGL <-> glium conversion chart in the crate root docs
Add a small OpenGL <-> glium conversion chart in the crate root docs

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