Add compatible hardware in docu

Props.md

@@ -16,6 +16,7 @@
 4. Implement `InboxMessage::run()` callback
 5. Update broker address from SSH (*BridgeProps*)
 6. Examples
+7. Compatible hardware
 
 
 ## 1. Defines the *Props*
@@ -317,6 +318,27 @@ See [EXAMPLES.md](EXAMPLES.md) for an adaptation of the Blink example (https://w
 4. **BlinkOnBridgePubSub**: the Blink example on props using *PubSubClient* directly
 
 
+## 7. Compatible hardware
+*Props* library is compatible with any Arduino board with Ethernet or Wifi capability.
+
+The library has been tested with:
+- **Arduino Yún**
+- **Arduino Yún Rev 2**
+- **Arduino Mega 2560 Rev3 + Dragino Yún Shield**
+- **Elegoo Mega 2560 R3 + Dragino Yún Shield**
+- **Arduino Uno WiFi Rev 2**
+- **Arduino NANO 33 IoT**
+- **Arduino MKR 1010**
+- **Arduino MKR VIDOR 4000**
+
+It will works with other Wifi capable hardware compatible with *[Nick O'Leary PubSubClient](https://github.com/knolleary/pubsubclient)* by replacing the `#include <WiFiNINA.h>` statement with appropriate one (`#include <ESP8266WiFi.h>` for ESP8266) in `WifiProps.h`:
+* Sparkfun WiFly Shield – <a href="https://github.com/dpslwk/WiFly" target="_blank">library</a>
+* TI CC3000 WiFi - <a href="https://github.com/sparkfun/SFE_CC3000_Library" target="_blank">library</a>
+* Intel Galileo/Edison
+* ESP8266
+* ESP32
+
+
 ## Author
 
 **Marie FAURE** (Oct 18th, 2019)