Clarify availability of renderers

README.md

@@ -10,7 +10,7 @@ three.js
 
 #### JavaScript 3D library ####
 
-The aim of the project is to create an easy to use, lightweight, 3D library. The library provides Canvas 2D, SVG, CSS3D and WebGL renderers.
+The aim of the project is to create an easy to use, lightweight, 3D library with a default WebGL renderer. The library also provides Canvas 2D, SVG and CSS3D renderers in the examples.
 
 [Examples](http://threejs.org/examples/) —
 [Documentation](http://threejs.org/docs/) —