Add diyHue repo to readme.md

Wled has been supported by diyHue for some time, now it also supports Hue Sync (Entertainment) under UDP in the flask branch which will be the new master branch. 

https://github.com/diyhue/diyHue/pull/628

readme.md

@@ -37,6 +37,7 @@ A fast and feature-rich implementation of an ESP8266/ESP32 webserver to control
 - MQTT  
 - Blynk IoT  
 - E1.31, Art-Net, DDP and TPM2.net
+- [diyHue](https://github.com/diyhue/diyHue) (Wled is supported by diyHue, including Hue Sync Entertainment under udp. Thanks to [Gregory Mallios](https://github.com/gmallios))
 - [Hyperion](https://github.com/hyperion-project/hyperion.ng)
 - UDP realtime  
 - Alexa voice control (including dimming and color)