docs: update readme (#21)

README.md

@@ -1,9 +1,18 @@
-# Krop for Compose Multiplatform
+<h1 align="center">
+    <img height="150" src="./art/icon.png"/>
+    <br>
+    Krop for Kotlin and Compose Multiplatform
+</h1>
+<p align="center">Easy to use image cropping library for Kotlin and Compose Multiplatform, with support for shapes, aspect-ratios, transformations, large images, auto zoom...</p>
+
 [![Krop Release](https://img.shields.io/github/release/tamimattafi/krop.svg?style=for-the-badge&color=darkgreen)](https://github.com/tamimattafi/krop/releases)
 [![Kotlin](https://img.shields.io/github/languages/top/tamimattafi/krop.svg?style=for-the-badge&color=blueviolet)](https://kotlinlang.org/)
 [![License Apache 2.0](https://img.shields.io/github/license/tamimattafi/krop.svg?style=for-the-badge&color=purple)](https://github.com/tamimattafi/krop/blob/main/LICENSE)
 
-Easy to use image cropping library for Compose Multiplatform, with support for shapes, aspect-ratios, transformations, large images, auto zoom...
+## Demo
+<p align="center">
+<img height="500" src="art/preview.gif"/>
+</p>
 
 ## Getting Started