Update raycaster config info

Author: wmurphyrd

examples/index.html

@@ -116,7 +116,7 @@ <h1>A-Frame Super Hands Component</h1>
 super-hands="colliderEvent: raycaster-intersection;
              colliderEventProperty: els;
              colliderEndEvent: raycaster-intersection-cleared;
-             colliderEndEventProperty: el"</pre>
+             colliderEndEventProperty: clearedEls"</pre>
     <p>This scene also shows the fallback movement that occurs when physics
       is not available.</p>
     <a id="sticky" class="example" href="sticky/">Sticky Grab via