Add submission # 4389

#4389

Author: ArduinoBot

registry.txt

@@ -6978,3 +6978,4 @@ https://github.com/NightHawk-Technology/NH8CHIR-lib.git|Contributed|NH8CHIR-lib
 https://github.com/rgot-org/LoRaWan_esp32.git|Contributed|LoRaWan_esp32
 https://github.com/arduino-libraries/Arduino_LowPowerPortentaH7.git|Arduino|Arduino_LowPowerPortentaH7
 https://github.com/ropg/LoRaWAN_ESP32.git|Contributed|LoRaWAN_ESP32
+https://github.com/mathieucarbou/AsyncTCP.git|Contributed|Async TCP