dead link in docs

docs/api/en/renderers/WebGLRenderTarget.html

@@ -11,7 +11,7 @@
 		<h1>[name]</h1>
 
 		<p class="desc">
-			A [link:https://msdn.microsoft.com/en-us/library/ff604997.aspx render target] is a buffer
+			A [link:https://webglfundamentals.org/webgl/lessons/webgl-render-to-texture.html render target] is a buffer
 			where the video card draws pixels for a scene that	is being rendered in the background.
 			It is used in different effects, such as applying postprocessing to a rendered image
 			before displaying it on the screen.

docs/api/zh/renderers/WebGLRenderTarget.html

@@ -11,7 +11,7 @@
 		<h1>[name]</h1>
 
 		<p class="desc">
-			[link:https://msdn.microsoft.com/en-us/library/ff604997.aspx render target]是一个缓冲，就是在这个缓冲中，视频卡为正在后台渲染的场景绘制像素。
+			[link:https://webglfundamentals.org/webgl/lessons/webgl-render-to-texture.html render target]是一个缓冲，就是在这个缓冲中，视频卡为正在后台渲染的场景绘制像素。
 			它用于不同的效果，例如用于在一个图像显示在屏幕上之前先做一些处理。
 
 		</p>