[DOCS] LilyGo LoRa32 V2.1 driver (#1500)

LilyGo LoRa32 V2.1 driver addition with link

docs/upload/web-install.md

@@ -6,6 +6,15 @@
 If you want to use the BLE decoding capabilities of OpenMQTTGateway with a tablet or smartphone you can use [Theengs App](https://app.theengs.io/).
 :::
 
+::: NOTE
+If you are on macOS and have a LilyGo LoRa32 V2.1 board, make sure you have the [correct driver for the CH9102 Serial Chip](https://github.com/WCHSoftGroup/ch34xser_macos) installed and selected in the popup when initiating the web install.
+
+To finalise the driver installation don't forget the confirmation in the **Security** section of **System Preferences** after the restart.
+
+The correct driver to then select in the popup of this web install is
+`/dev/cu.wchusbserialXXXXXXXXXXX`
+:::
+
 You can upload the firmware to your ESP device directly from here.
 1. Plug in your ESP to a USB port.
 2. Select the firmware in the box below.