Add firmware update web config

Author: PaulZC

docs/img/WiFi Config/SparkFun RTK Web Config - Firmware Update.png

@@ -6,6 +6,10 @@ Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](
 
 *Firmware Update menu*
 
+![RTK EVK Web Config - Firmware Update](<img/WiFi Config/SparkFun RTK Web Config - Firmware Update.png>)
+
+*The RTK EVK Web Config page - firmware update*
+
 From time to time SparkFun will release new firmware for the RTK product line to add and improve functionality. For most users, firmware can be upgraded over WiFi using the [OTA method](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/firmware_update/#updating-firmware-over-the-air).
 
 The Firmware Update menu allows users to check for and install updates. Turning on *Automatic firmware updates* will cause the device to periodically check and install updates when they become available. This can be helpful for remote stations that cannot have manual interventions.