Add link and mention to ESP32 reference target
@@ -22,6 +22,8 @@ This repo contains:
* [Wilderness Labs Netduino3 WiFi](targets/CMSIS-OS/ChibiOS/NETDIUNO3_WIFI)
* ChibiOS overlay for **nanoFramework**
* [STM32 Flash driver](targets/CMSIS-OS/ChibiOS/nf-overlay/os/hal/src/stm32_flash)
+* Target reference for FreeRTOS
+ * [ESP32_DevKitC](targets/FreeRTOS/ESP32_DevKitC)
* Target reference for other OSes
* [Win32 OS (test project only at this time)](targets/os/win32)
* [CMake files for the build system](CMake)
