update readme

README.md

@@ -83,6 +83,7 @@ The `sprites()` method gets periodically called to check whether something has b
 A simple fade out scene effect is implemented in demo 1, that converges the palette colors of both palettes to white. It's easy to **create your own effects** by subclassing `SceneEffect`. 
 
 ![sample fade out](https://github.com/wgroeneveld/gba-sprite-engine/blob/master/img/fade.gif?raw=true)
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 Sample fade effect, demo 1.
 
 #### Backgrounds
@@ -92,6 +93,7 @@ Scrollable backgrounds are present:
 Call `scroll()` in your scene update.
 
 ![scroll bg](https://github.com/wgroeneveld/gba-sprite-engine/blob/master/img/scroll.gif?raw=true)
+
 Sample scrolling background demo 1.
 
 Creating a background: 
@@ -112,6 +114,7 @@ Creating sprites is easy with the `SpriteBuilder`. Specify what kind of sprite y
 **Affine sprites can transform** using for example `rotate(angle)` - check out demo 1 or 3 for that. 
 
 ![rotation](https://github.com/wgroeneveld/gba-sprite-engine/blob/master/img/rotate.gif?raw=true)
+
 Sample rotation demo 3.
 
 **Sprite animation is built-in**! Just feed your sprite data to the builder and use `.withAnimated(amountOfFrames, frameDelay)`. Remember to position each frame in one column in the image itself (vertically). 
@@ -126,6 +129,7 @@ Useful sprite methods:
 * Various getters like `getWith()` etc
 
 ![stay within bounds](https://github.com/wgroeneveld/gba-sprite-engine/blob/master/img/bounds.gif?raw=true)
+
 The paddle auto-stays within bounds.
 
 #### Sound