Minor improvements to DirectionalLightHelper doc

docs/api/extras/helpers/DirectionalLightHelper.html

@@ -12,47 +12,61 @@
 
 		<h1>[name]</h1>
 
-		<div class="desc">Visualize a [page:DirectionalLight]'s effect on the scene</div>
+		<div class="desc">Helper object to assist with visualizing a [page:DirectionalLight]'s effect on the scene.</div>
+
+		<h2>Example</h2>
+
+		<code>
+		var light = new THREE.DirectionalLight( 0xFFFFFF );
+
+		var helper = new THREE.DirectionalLightHelper( light );
+
+		scene.add( helper );
+		</code>
 
 
 		<h2>Constructor</h2>
 
 
-		<h3>[name]([page:DirectionalLight light], [page:Number size])</h3>
+		<h3>[name]( [page:DirectionalLight light], [page:Number size] )</h3>
 		<div>
-		light -- [page:DirectionalLight] -- Light to visualize <br />
-		size -- dimensions of the plane
-		</div>
-		<div>
-		Creates a line and plane to visualize the light's position and direction
+		[page:DirectionalLight light]-- Light to visualize. <br />
+		[page:Number size] -- (optional) dimensions of the plane. Default is *1*.<br /><br />
+
+		Creates a line and plane to visualize the light's position and direction.
 		</div>
 
 
 		<h2>Properties</h2>
+		<div>See the base [page:Object3D] class for common properties.</div>
 
 
 		<h3>[property:Line lightPlane]</h3>
-		<div>
-		Contains the line mesh showing the location of the directional light.
-		</div>
+		<div>Contains the line mesh showing the location of the directional light.</div>
 
 		<h3>[property:DirectionalLight light]</h3>
-		<div>
-		Contains the directionalLight.
-		</div>
+		<div>Contains the directionalLight.</div>
 
-		<h3>[property:Line targetLine]</h3>
+		<h3>[property:object matrix]</h3>
+		<div>Reference to the [page:Object3D.matrixWorld light.matrixWorld].</div>
+
+		<h3>[property:object matrixAutoUpdate]</h3>
 		<div>
-		Contains the line mesh that shows the direction of the light.
+			See [page:Object3D.matrixAutoUpdate]. Set to *false* here as the helper is using the
+			light's [page:Object3D.matrixWorld matrixWorld].
 		</div>
 
+
+
 		<h2>Methods</h2>
+		<div>See the base [page:Object3D] class for common properties.</div>
+
+		<h3>.[method:null dispose]()</h3>
+		<div>Dispose of the directionalLightHelper.</div>
 
 
 		<h3>.[method:null update]()</h3>
-		<div>
-		Updates the helper to match the position and direction of the [page:.light].
-		</div>
+		<div>Updates the helper to match the position and direction of the [page:.light].</div>
 
 		<h2>Source</h2>