[MKC-774] Opta support IoTC

- Add Opta to the IoTC getting started page under "Ethernet" hardware
- Please note, since it is not released yet, a note is added to explain this.

Author: karlsoderby

content/arduino-cloud/01.getting-started/01.iot-cloud-getting-started/iot-cloud-getting-started.md

@@ -98,9 +98,13 @@ The Arduino IoT Cloud supports a wide range of third party boards based on the E
 
 ### Ethernet
 
-The Arduino IoT Cloud supports connection via Ethernet on a number of devices.
+The Arduino IoT Cloud supports connection via Ethernet on a number of devices. The options to connect via Ethernet are the following:
+- Connect with the [Portenta H7](https://store.arduino.cc/products/portenta-h7) in combination with an Ethernet compatible carrier/shield (see below).
+- Connect with the [Opta](https://docs.arduino.cc/hardware/opta).\* 
 
-To connect via Ethernet, you need a [Portenta H7](https://store.arduino.cc/products/portenta-h7) board, in combination with one of the following shields/carriers:
+\* The Opta is scheduled to be released soon, along with documentation how to use it. Read more at the [Opta communications page](https://store.arduino.cc/pages/opta).
+
+To connect with the **Portenta H7** board, you will need one of the following shields/carriers:
 - [Portenta Vision Shield Ethernet](https://store.arduino.cc/products/arduino-portenta-vision-shield-ethernet)
 - [Portenta Machine Control](https://store.arduino.cc/portenta-machine-control)