updated README

Author: ccattuto

README.md

@@ -236,10 +236,12 @@ Example Python programs using programmatic access to the emulator are provided i
 PYTHONPATH=. python tests/test_api_simple.py
 ```
 
-## Browser-based emulator
+## 🌐 Browser-based Emulation
 
 The emulator can run in a web browser thanks to [Pyodide](https://pyodide.org/). See `advanced/webapp`.
 
+You can [try it out here](https://ccattuto.github.io/riscv-python/).
+
 ## 🧪 Running Unit Tests
 ```
 cd riscv-tests