message: Mention that OpenGL is also column-major and remove superfluity
diff: @@ -47,7 +47,7 @@ target.draw(&vertex_buffer, &indices, &program, &uniforms,
  &Default::default()).unwrap();
  ```
  -Note that in glium the matrices are column-major. If we were to write the above matrix in standard mathematical notation, it would look like this (unfortunately, markdown does not let us format things with LaTeX, so this doesn't look nicely formatted):
  +Note that in OpenGL, and therefore glium, the matrices are column-major. If we were to write the above matrix in standard mathematical notation, which is row-major, it would look like this:
  ```
  1.0 0.0 0.0 t
  0.0 1.0 0.0 0.0
  