Minor improvements to QuadraticBezierCurve3 doc

docs/api/extras/curves/QuadraticBezierCurve3.html

@@ -13,7 +13,9 @@
 		<h1>[name]</h1>
 
 		<div class="desc">
-			Create a smooth 3d <a href="http://en.wikipedia.org/wiki/B%C3%A9zier_curve#mediaviewer/File:B%C3%A9zier_2_big.gif" target="_blank">quadratic bezier curve</a>.
+			Create a smooth 3d
+			<a href="http://en.wikipedia.org/wiki/B%C3%A9zier_curve#mediaviewer/File:B%C3%A9zier_2_big.gif" target="_blank">quadratic bezier curve</a>,
+			defined by a startpoint, endpoint and a single control point.
 		</div>
 
 		<h2>Example</h2>
@@ -30,7 +32,7 @@ geometry.vertices = curve.getPoints( 50 );
 
 var material = new THREE.LineBasicMaterial( { color : 0xff0000 } );
 
-// Create the final Object3d to add to the scene
+// Create the final object to add to the scene
 var curveObject = new THREE.Line( geometry, material );
 </code>
 
@@ -47,18 +49,20 @@ var curveObject = new THREE.Line( geometry, material );
 
 
 		<h2>Properties</h2>
+		<div>See the base [page:Curve] class for common properties.</div>
+
 
 		<h3>[property:Vector3 v0]</h3>
+		<div>The startpoint.</div>
 
 		<h3>[property:Vector3 v1]</h3>
+		<div>The control point.</div>
 
 		<h3>[property:Vector3 v2]</h3>
-
+		<div>The endpoint.</div>
 
 		<h2>Methods</h2>
-
-
-		<h3>See [page:Curve] for inherited methods</h3>
+		<div>See the base [page:Curve] class for common methods.</div>
 
 		<h2>Source</h2>