update readme to match labs

README.md

@@ -1,23 +1,76 @@
 <h1><img src="assets/logotype.svg" alt="CheerpJ" height="96"></h1>
 
+[![Version](https://img.shields.io/badge/version-3.0-orange)](https://labs.leaningtech.com/cheerpj3)
 [![Discord server](https://img.shields.io/discord/988743885121548329?color=%237289DA&logo=discord&logoColor=ffffff)](https://discord.leaningtech.com)
 [![GitHub Issues](https://img.shields.io/github/issues/leaningtech/cheerpj-meta.svg)](https://github.com/leaningtech/cheerpj-meta/issues)
 
-CheerpJ is a **drop-in HTML5 replacement** for the JVM, and is compatible with 100% of Java 8, including Swing, reflection and dynamic class loading.
+CheerpJ is a WebAssembly-based **Java Virtual Machine for the browser**. It
+has extensive compatibility with Java 8 and provides a full runtime
+environment[^compat] for running Java applications, applets, libraries, and
+Java Web Start / JNLP applications in the browser without plugins.
 
 [Documentation](https://labs.leaningtech.com/cheerpj)  
+[Examples](examples)  
 [Issues](https://github.com/leaningtech/cheerpj-meta/issues)  
 [Discord server](https://discord.leaningtech.com)  
 
-![](assets/cheerpj_visual_2.png)
+```html
+<script src="https://cjrtnc.leaningtech.com/3.0/cj3loader.js"></script>
+```
+
+![](assets/explanation-diagram.webp)
+
+## Features
 
 With CheerpJ, you can:
 
 - Run existing **Java applications** in the browser with no changes
 - Include **Java applets** in webpages without legacy plugins
 - Migrate **Java Web Start / JNLP** applications to work on modern systems
-- Use Java libraries in JavaScript/TypeScript seamlessly
+- Use **Java libraries** in JavaScript/TypeScript seamlessly
+- Interoperate between Java and JavaScript libraries
+
+CheerpJ is based on a full OpenJDK runtime environment. It supports reflection, custom classloaders, networking, file access, clipboard, audio, printing, Swing, and AWT.
+
+[Get started](https://labs.leaningtech.com/cheerpj3/getting-started)  
+
+## How does CheerpJ work?
+
+CheerpJ is a combination of two components:
+
+1. An optimising Java-to-JavaScript JIT compiler.
+2. A full Java SE 8 runtime based on OpenJDK.
+
+Both are written in C++ and are compiled to WebAssembly & JavaScript using [Cheerp](https://labs.leaningtech.com/cheerp).
+
+[Learn more about CheerpJ's architecture](https://labs.leaningtech.com/cheerpj3/explanation/architecture)
+
+## What's unique about CheerpJ?
+
+1. CheerpJ can handle 100% of Java 8, including Swing, reflection and dynamic class loading with no manual intervention on the code.
+2. CheerpJ works directly on Java bytecode, and does not require access to the Java source code.
+3. CheerpJ comes with a full Java SE runtime, inclusive of Swing/AWT. It supports audio, printing, and any other Java SE features. The runtime supports WebAssembly for optimal performance and size.
+4. The JavaScript code generated by the CheerpJ JIT is highly optimised and garbage-collectible.
+5. CheerpJ enables bidirectional Java-JavaScript interoperability. JavaScript libraries, as well as the DOM, can be called and manipulated from Java. Also, Java modules can be invoked from JavaScript.
+6. CheerpJ supports Java multi-threading. In addition, you can create concurrent applications by using Web Workers.
 
 ## Licensing
 
-CheerpJ is free for non-commerical use and technical evaluation. See [licensing](https://leaningtech.com/cheerpj-licensing/) for details.
+CheerpJ is free for personal use and technical evaluation. See [licensing](/cheerpj3/licensing) for details.
+
+## Demos
+
+Several demos of CheerpJ can be found [here](https://leaningtech.com/demo/).
+
+You can also see CheerpJ in action in [JavaFiddle](https://javafiddle.leaningtech.com/) and [Browsercraft](https://browsercraft.cheerpj.com/).
+
+## Community
+
+CheerpJ is used in production by teams at NASA, Siemens, UBS, and [many others](https://leaningtech.com/case-studies/).
+
+We have a vibrant Discord community where you can ask questions, share your projects, and get community support.
+
+[Join the Discord server](https://discord.leaningtech.com)  
+[Follow us on Twitter](https://twitter.com/leaningtech)  
+
+[^compat]: CheerpJ has been tested on Oracle Forms, EBS, Swing, AWT, and numerous frameworks and libraries. It should be able to run Java SE applications that you would otherwise need a Java Runtime Environment for.