Add RIOT-OS to Software Resource list

README.md

@@ -72,8 +72,9 @@ The nRF52840 Micro Dev Kit USB Dongle can be used to play with : *nRF5 SDK*, *Op
 | [iBeacon](https://developer.apple.com/ibeacon/) | A Bluetooth low energy advertising message format designed by Apple |
 | [Eddystone](https://github.com/google/eddystone) | A protocol specification that defines a Bluetooth low energy message format for proximity beacon messages |
 | [CircuitPython](https://github.com/adafruit/circuitpython/blob/master/ports/nrf/README.md) | A Python language for microcontrollers designed to simplify experimentation and learning |
-| [TinyGo](https://github.com/aykevl/tinygo/issues/30) | Go compiler for small devices, based on LLVM |
+| [TinyGo](https://github.com/tinygo-org/tinygo) | Go compiler for small devices, based on LLVM |
 | [Rust for nrf52840-mdk](https://github.com/nrf-rs/nrf52840-mdk-rs) | Rust support for the nrf52840-mdk development board |
+| [RIOT OS](https://github.com/RIOT-OS/RIOT/blob/695e91a90a6545b6937bd0f52f0e87d278155ec0/boards/nrf52840-mdk/doc.txt) | The friendly Operating System for the Internet of Things, |
 
 ## Hardware Resource