Update README.md

It's published!

Author: toxicFork

README.md

@@ -6,7 +6,7 @@ Simple and fast tool to import XML spritesheets (TextureAtlas) into Unity3D!
 Works very well to import [Kenney's sprite assets](http://opengameart.org/users/kenney)!
 
 ## Usage
-- Copy this folder to your project's assets directory, or just use the latest .unitypackage file from the [Github project's releases](https://github.com/toxicFork/Unity3D-TextureAtlasSlicer/releases), or the Unity3D asset store!
+- Copy this folder to your project's assets directory, or just use the latest .unitypackage file from the [Github project's releases](https://github.com/toxicFork/Unity3D-TextureAtlasSlicer/releases), or the [Unity3D asset store](https://www.assetstore.unity3d.com/en/#!/content/36103)!
 - You can now use the Assets/Slice Sprite Using XML button!
 - This will open a window.
 - Select any sprite asset in your Project window