[PC-1216] Product page getting started button. Small improvement on getting started (#979)

* Product page getting started button. Small improvement on getting started

* Content direct minor update for Wi-Fi®

* Description recovered.

---------

Co-authored-by: TaddyHC <k.hochung@arduino.cc>

Author: jcarolinares

content/hardware/07.opta/opta-family/opta/product.md

@@ -1,7 +1,8 @@
 ---
 title: Opta
 url_shop: https://store.arduino.cc/collections/pro-family
-core: arduino:mbed_portenta
+url_guide: /tutorials/opta/getting-started
+core: arduino:mbed_opta
 ---
 
 The **Arduino Opta®** is a secure, easy-to-use **micro PLC** with Industrial IoT capabilities. Designed in partnership with **Finder®**, a leading industrial and building automation device manufacturer.

content/hardware/07.opta/opta-family/opta/tutorials/getting-started/content.md

@@ -68,7 +68,7 @@ Hereafter you can see the correspondence between each of them as identified in t
 - `LED_D2`: STATUS 3
 - `LED_D3`: STATUS 4
 - `LED_RESET`: LED above the reset button
-- `LED_USER`: LED above the user button (only available on the Opta™ with connectivity features)
+- `LED_USER`: LED above the user button (only available on the Opta™ with Wi-Fi®/Bluetooth® Low Energy connectivity features)
 
 Select the correct **board** and **port** in the **Tools** section.
 Copy the sketch below into the Arduino IDE sketch editor, then upload it to Opta™.