Docs: Clean up.

docs/manual/ar/introduction/How-to-update-things.html

@@ -111,7 +111,7 @@ line.geometry.computeBoundingSphere();
 
 			<p>
 				هنا مثال يعرض خطًا متحركًا يمكن تكييفه مع حالة الاستخدام الخاصة بك.
-				[link:http://jsfiddle.net/w67tzfhx/ Here is a fiddle]
+				[link:https://jsfiddle.net/xvnctbL0/2/ Here is a fiddle]
 			</p>
 
 			<h3>أمثلة</h3>

docs/manual/en/introduction/How-to-update-things.html

@@ -121,7 +121,7 @@ line.geometry.computeBoundingSphere();
 			</code>
 
 			<p>
-				[link:http://jsfiddle.net/w67tzfhx/ Here is a fiddle] showing an animated line which you can adapt to your use case.
+				[link:https://jsfiddle.net/xvnctbL0/2/ Here is a fiddle] showing an animated line which you can adapt to your use case.
 			</p>
 
 			<h3>Examples</h3>

docs/manual/ko/introduction/How-to-update-things.html

@@ -117,7 +117,7 @@ line.geometry.computeBoundingSphere();
 			</code>
 
 			<p>
-				[link:http://jsfiddle.net/w67tzfhx/ Here is a fiddle] showing an animated line which you can adapt to your use case.
+				[link:https://jsfiddle.net/xvnctbL0/2/ Here is a fiddle] showing an animated line which you can adapt to your use case.
 			</p>
 
 			<h3>Examples</h3>

docs/manual/zh/introduction/How-to-update-things.html

@@ -107,7 +107,7 @@ line.geometry.attributes.position.needsUpdate = true; // 需要加在第一次
 			</code>
 
 			<p>
-				<a href="http://jsfiddle.net/w67tzfhx/">这个fiddle</a>展示了一个你可以参考的运动的line。
+				<a href="https://jsfiddle.net/xvnctbL0/2/">这个fiddle</a>展示了一个你可以参考的运动的line。
 			</p>
 
 			<h3>例子</h3>