refactoring and fixed auto-animate test exception

README.md

@@ -26,6 +26,7 @@ reveal.js comes with a broad range of features including [nested slides](https:/
 - [Vertical Slide Navigation](#vertical-slide-navigation)
 - [Touch Navigation](#touch-navigation)
 - [Lazy Loading](#lazy-loading)
+- [Auto-Animate](#auto-animate)
 - [API](#api)
   - [Custom Key Bindings](#custom-key-bindings)
   - [Slide Changed Event](#slide-changed-event)
@@ -543,6 +544,16 @@ Reveal.configure({
 });
 ```
 
+### Auto-Animate
+
+TBD
+
+#### Slide & Element Specific Settings
+TBD. How to use data-attributes to override transition settings.
+
+#### Custom Element Matcher
+TBD. How to implement your own element matcher.
+
 ### Vertical Slide Navigation
 
 Slides can be nested within other slides to create vertical stacks (see [Markup](#markup)). When presenting, you use the left/right arrows to step through the main (horizontal) slides. When you arrive at a vertical stack you can optionally press the up/down arrows to view the vertical slides or skip past them by pressing the right arrow. Here's an example showing a bird's-eye view of what this looks like in action: