Update README.md

Author: Jason2866

README.md

@@ -19,6 +19,7 @@
 ESP32 is a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and Bluetooth. ESP32 integrates an antenna switch, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules.
 
 * [Documentation](https://docs.platformio.org/page/platforms/espressif32.html) (advanced usage, packages, boards, frameworks, etc.)
+* Issues with boards (wrong / missing). All issues caused from boards will not be fixed from the maintainer(s). A PR needs to be provided to solve.
 
 ## IDE Preparation