Update the animation example

examples/animation.html

@@ -3,8 +3,8 @@ layout: example.html
 title: View Animation
 shortdesc: Demonstrates animated pan, zoom, and rotation.
 docs: >
-  This example shows how to use the beforeRender function on the Map to run one
-  or more animations.
+  This example shows how to use the <code>view.animate()</code> method to run
+  one or more animations.
 tags: "animation"
 ---
 <div id="map" class="map"></div>
@@ -16,4 +16,3 @@ tags: "animation"
 <button id="bounce-to-istanbul">Bounce to Istanbul</button>
 <button id="spin-to-rome">Spin to Rome</button>
 <button id="fly-to-bern">Fly to Bern</button>
-<button id="spiral-to-madrid">Spiral to Madrid</button>