Update WebGLRenderer.html

docs/api/renderers/WebGLRenderer.html

@@ -200,7 +200,7 @@
 		<div>Returns a [page:Float float] with the current clear alpha. Ranges from 0 to 1.</div>
 
 		<h3>[method:null clear]( [page:Boolean color], [page:Boolean depth], [page:Boolean stencil] )</h3>
-		<div>Tells the renderer to clear its color, depth or stencil drawing buffer(s).</div>
+		<div>Tells the renderer to clear its color, depth or stencil drawing buffer(s). This method initializes the color buffer to the current clear color value.</div>
 		<div>Arguments default to true.</div>
 
 		<h3>[method:null renderBufferImmediate]( [page:Object3D object], [page:shaderprogram program], [page:Material shading] )</h3>