Docs: Update Raycaster page

docs/api/en/core/Raycaster.html

@@ -161,7 +161,8 @@
 			[page:Face3 face] – intersected face<br />
 			[page:Integer faceIndex] – index of the intersected face<br />
 			[page:Object3D object] – the intersected object<br />
-			[page:Vector2 uv] - U,V coordinates at point of intersection
+			[page:Vector2 uv] - U,V coordinates at point of intersection<br />
+			[page:Vector2 uv2] - Second set of U,V coordinates at point of intersection
 		</p>
 		<p>
 		*Raycaster* delegates to the [page:Object3D.raycast raycast] method of the passed object, when evaluating whether the ray intersects the object or not. This allows [page:Mesh meshes] to respond differently to ray casting than [page:Line lines] and [page:Points pointclouds].

docs/api/zh/core/Raycaster.html

@@ -161,7 +161,8 @@
 			[page:Face3 face] —— 相交的面<br />
 			[page:Integer faceIndex] —— 相交的面的索引<br />
 			[page:Object3D object] —— 相交的物体<br />
-			[page:Vector2 uv] —— 相交部分的点的UV坐标。
+			[page:Vector2 uv] —— 相交部分的点的UV坐标。<br />
+			[page:Vector2 uv2] - Second set of U,V coordinates at point of intersection
 		</p>
 		<p>
 			当计算这条射线是否和物体相交的时候，*Raycaster*将传入的对象委托给[page:Object3D.raycast raycast]方法。