Update README.md

README.md

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 # PlayCanvas Editor
 
-The PlayCanvas Editor is a visual editing environment for building WebGL/WebGPU/WebXR apps. It is built on the following open source libraries:
+The PlayCanvas Editor is a visual editing environment for building WebGL/WebGPU/WebXR apps. It can be accessed at https://playcanvas.com.
 
-* [PlayCanvas Engine](https://github.com/playcanvas/engine).
-* [Observer](https://github.com/playcanvas/playcanvas-observer).
-* [PCUI](https://github.com/playcanvas/pcui).
-* [PCUI-Graph](https://github.com/playcanvas/pcui-graph).
-* [Editor API](https://github.com/playcanvas/editor-api).
+![Editor](images/editor.png)
 
-The Editor can be accessed at https://playcanvas.com.
+## Open Source
 
-![Editor](images/editor.png)
+The Editor is built on the following open source libraries:
+
+| Library                                                       | Details                                     |
+| ------------------------------------------------------------- | ------------------------------------------- |
+| [PlayCanvas Engine](https://github.com/playcanvas/engine)     | Powers the Editor's 3D View and Launch Page |
+| [Observer](https://github.com/playcanvas/playcanvas-observer) | Data binding and history                    |
+| [PCUI](https://github.com/playcanvas/pcui)                    | Front-end component library                 |
+| [PCUI-Graph](https://github.com/playcanvas/pcui-graph)        | PCUI plugin for rendering node-based graphs |
+| [Editor API](https://github.com/playcanvas/editor-api)        | Public API for Editor automation            |
 
 ## Issues