v2.0.0 for ESP32 + LwIP W6100

### Initial Releases v2.0.0

1. Initial coding to port [AsyncUDP](https://github.com/espressif/arduino-esp32/tree/master/libraries/AsyncUDP) to ESP32 boards using `LwIP W6100 Ethernet`
2. Add more examples.
3. Add debugging features.
4. Bump up to v2.0.0 to sync with [AsyncUDP v2.0.0](https://github.com/espressif/arduino-esp32/tree/master/libraries/AsyncUDP).

Author: khoih-prog

README.md

@@ -104,7 +104,7 @@ to apply the better and faster **asynchronous** feature of the **powerful** [Asy
 
 ## Prerequisites
 
- 1. [`Arduino IDE 1.8.19+` for Arduino](https://github.com/arduino/Arduino/). [![Latest release](https://img.shields.io/github/release/Arduino.svg)](https://github.com/arduino/Arduino/releases/latest/)
+ 1. [`Arduino IDE 1.8.19+` for Arduino](https://github.com/arduino/Arduino/).
  2. [`ESP32 Core 2.0.6+`](https://github.com/espressif/arduino-esp32) for ESP32-based boards. [![Latest release](https://img.shields.io/github/release/espressif/arduino-esp32.svg)](https://github.com/espressif/arduino-esp32/releases/latest/)
 
  3. [`WebServer_ESP32_W6100 library 1.5.2+`](https://github.com/khoih-prog/WebServer_ESP32_W6100). To install, check [![arduino-library-badge](https://www.ardu-badge.com/badge/WebServer_ESP32_W6100.svg?)](https://www.ardu-badge.com/WebServer_ESP32_W6100)