Updates readme.

Author: PhaserEditor2D

README.md

@@ -43,4 +43,10 @@ If Phaser Editor 2D Core is globally installed, you can run:
 
 ```bash
 $ PhaserEditor2D -project .
-```
+```
+
+## Script Nodes
+
+Script nodes are logic objects. You can add a script node to the scene or a game object, for extending it with custom data and behavior.
+
+This project includes the [basic script nodes](https://github.com/PhaserEditor2D/script-nodes-basic-js) in the `src/script-nodes-basic/` folder. You can add your own script nodes in the `src/script-nodes/` folder.