Update README.md (#792)

Author: Nerivec

README.md

@@ -46,7 +46,7 @@
      adapter: zstack
      port: /dev/serial/by-id/usb-Texas_Instruments_TI_CC2531_USB_CDC___0X00124B0018ED3DDF-if00
      ```
-     If you don't know the port and you have just one USB device connected to your machine try `/dev/ttyUSB0` or `/dev/ttyAMA0`. Else use the [Home Assistant CLI](https://www.home-assistant.io/common-tasks/os#home-assistant-via-the-command-line) and execute `ha hardware info` to find out.
+     If you don't know the port and you have just one USB device connected to your machine try `/dev/ttyACM0` or `/dev/ttyUSB0` or `/dev/ttyAMA0`. Else use the [Home Assistant CLI](https://www.home-assistant.io/common-tasks/os#home-assistant-via-the-command-line) and execute `ha hardware info` to find out.
 
 For more information see [the documentation](https://github.com/zigbee2mqtt/hassio-zigbee2mqtt/blob/master/zigbee2mqtt/DOCS.md).