Update index.html

Playground/index.html

@@ -151,7 +151,7 @@
             <div class='link'> <a target='_new' href="http://www.html5gamedevs.com/forum/16-babylonjs/">Forum</a></div>
             <div class='link'><a target='_new' href="https://www.babylonjs.com/sandbox">Sandbox</a></div>            
             <div class='link'><a target='_new' href="https://doc.babylonjs.com">Documentation</a></div>
-            <div class='link'><a target='_new' href="https://doc.babylonjs.com/playground">Playground Search</a></div>
+            <div class='link'><a target='_new' href="https://doc.babylonjs.com/playground">Search</a></div>
         </div>
     </div>