Add more cross-platform wrappers for OpenGL and GLFW.

README.md

@@ -491,6 +491,8 @@ See [go-hardware](https://github.com/rakyll/go-hardware) for a comprehensive lis
 
 * [gl](https://github.com/go-gl/gl) - Go bindings for OpenGL (generated via glow).
 * [glfw](https://github.com/go-gl/glfw) - Go bindings for GLFW 3.
+* [goxjs/gl](https://github.com/goxjs/gl) - Go cross-platform OpenGL bindings (OS X, Linux, Windows, browsers, iOS, Android).
+* [goxjs/glfw](https://github.com/goxjs/glfw) - Go cross-platform glfw library for creating an OpenGL context and receiving events.
 * [mathgl](https://github.com/go-gl/mathgl) - Pure Go math package specialized for 3D math, with inspiration from GLM.