Update Readme

Author: vshymanskyy

Diff for: README.md

@@ -4,7 +4,12 @@
 Main repository: [**Wasm3 project**](https://github.com/wasm3/wasm3)  
 This library can be used with `Arduino`, `PlatformIO` and `Particle`.
 
-**Note:** this library requires at least **~64Kb** Flash and **~10Kb** RAM even for minimal functionality.
+## Supported devices
+The library was verified to work with:
+
+`ESP8266`, `ESP32`, `Particle Photon`, `Particle Electron`, `nRF51`, `nRF52`, `Teensy 3.1/3.2`
+
+**Note:** it requires at least **~64Kb** Flash and **~10Kb** RAM even for minimal functionality.
 
 ### License
 This project is released under The MIT License (MIT)