Documentation lacking minimal example about espasync_wifimanager

[khoih-prog]

I just hope anybody using this library spending some time to look at the examples, understand and test them to have much better knowledge that will definitely benefit in the long run.

I really don't expect any user uses as fast food, without spending any time with it. The versatility and functionality are what I like to provide to the library's users, not just simplicity without any long term benefit.

Anyway, I've just created several dead-simple examples which I just hope anybody could do, simply by deleting the unwanted portions of code

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Simplest Possible

1. Async_AutoConnect_ESP32_minimal
2. Async_AutoConnect_ESP8266_minimal
3. Async_ConfigOnDRD_ESP32_minimal
4. Async_ConfigOnDRD_ESP8266_minimal

[positron96]

Amazing, thank you!