Instal ESP HA with ethernet

[kulibin]

I installed it and everything works. 
Two questions.
 If I don't use Tuya, can I document this?

tuya_wifi_mcu:
  # tuya mcu product id
  product_id: vyznobv3bahs2pwl
  uart_id: tuya_mcu_uart
  wifi_reset_pin: 28
  wifi_led_pin: 16


 And how do I add the WiFi login and password to the file? I'm currently using Ethernet, but I want to use WiFi when I'm away.
Thanks