message: Update README.md
  Esp32 warning
diff: @@ -7,6 +7,8 @@ The configuration portal is of the captive variety, so on various devices it wil
  First attempt at a library. Lots more changes and fixes to do. Contributions are welcome.
  +### ESP32 must be patched with webserver library!!!!!! see https://github.com/tzapu/WiFiManager/issues/241
  +
  #### This works with the ESP8266 Arduino platform with a recent stable release(2.0.0 or newer) https://github.com/esp8266/Arduino
  ## Contents
  