Minor typo in docs: call the debounce callback

src/mini/debouncer.html

@@ -27,7 +27,7 @@
      *     debouncedClickAction: function(e) {
      *       // will not call `processClick` more than once per 100ms
      *       this.debounce('click', function() {
-     *        this.processClick;
+     *        this.processClick();
      *       }, 100);
      *     }
      *