v1.1.0 to add support to RPi-Pico

### Releases v1.1.0

1. Add support to **RASPBERRY_PI_PICO boards** using [Earle Philhower's arduino-pico core](https://github.com/earlephilhower/arduino-pico)
2. Add support to **SIPEED_MAIX_DUINO boards**
3. Add Table-of-Contents
4. Add Version String

Author: khoih-prog

README.md

@@ -16,8 +16,8 @@
   * [Features](#features)
   * [Currently Supported Boards](#currently-supported-boards)
 * [Changelog](#changelog)
-  * [Releases v1.1.0](#release-v110)
-  * [Releases v1.0.0](#release-v100)
+  * [Releases v1.1.0](#releases-v110)
+  * [Releases v1.0.0](#releases-v100)
 * [Prerequisites](#prerequisites)
 * [Important Notes about AT Firmwares](#important-notes-about-at-firmwares)
   * [1. Firmwares tested OK with ESP8266 AT shields](#1-firmwares-tested-ok-with-esp8266-at-shields)
@@ -42,7 +42,7 @@
 * [HOWTO Get started](#howto-get-started)
   * [API List](#api-list)
 * [Hardware Connection](#hardware-connection)
-  * [MEGA, SAM DUE(#mega-sam-due)
+  * [MEGA, SAM DUE](#mega-sam-due)
 * [Attention](#attention)
 * [Examples](#examples)
   * [ 1. ConnectWiFi](examples/ConnectWiFi)
@@ -54,7 +54,6 @@
   * [ 7. UDPClientMultiple](examples/UDPClientMultiple)
 * [Example TCPServer](#example-tcpserver)
 * [Debug Terminal Output Samples](#debug-terminal-output-samples)
-1. HTTPGET on RASPBERRY_PI_PICO with ESP8266-AT shield
   * [1. HTTPGET on RASPBERRY_PI_PICO with ESP8266-AT shield](#1-httpget-on-raspberry_pi_pico-with-esp8266-at-shield)
 * [Debug](#debug)
 * [Troubleshooting](#troubleshooting)
@@ -115,9 +114,9 @@ This [**ESP_AT_Lib** library](https://github.com/khoih-prog/ESP_AT_Lib) currentl
 - Generic Flight Controllers
 - Midatronics boards
 
-7. RP2040-based boards, such as RASPBERRY_PI_PICO, ADAFRUIT_FEATHER_RP2040 and GENERIC_RP2040.
+7. RP2040-based boards, such as **RASPBERRY_PI_PICO, ADAFRUIT_FEATHER_RP2040 and GENERIC_RP2040**.
 
-8. SIPEED_MAIX_DUINO boards
+8. **SIPEED_MAIX_DUINO** boards
 
 
 ---
@@ -146,16 +145,17 @@ This [**ESP_AT_Lib** library](https://github.com/khoih-prog/ESP_AT_Lib) currentl
 
  1. [`Arduino IDE 1.8.13+` for Arduino](https://www.arduino.cc/en/Main/Software)
  2. [`Arduino AVR core 1.8.3+`](https://github.com/arduino/ArduinoCore-avr) for Arduino (Use Arduino Board Manager) for AVR boards. [![GitHub release](https://img.shields.io/github/release/arduino/ArduinoCore-avr.svg)](https://github.com/arduino/ArduinoCore-avr/releases/latest)
- 3. [`Arduino Core for STM32 v1.9.0+`](https://github.com/stm32duino/Arduino_Core_STM32) for STM32F/L/H/G/WB/MP1 boards (Nucleo-144 NUCLEO_F767ZI, Nucleo-64 NUCLEO_L053R8, etc.). [![GitHub release](https://img.shields.io/github/release/stm32duino/Arduino_Core_STM32.svg)](https://github.com/stm32duino/Arduino_Core_STM32/releases/latest)
+ 3. [`Arduino Core for STM32 v2.0.0+`](https://github.com/stm32duino/Arduino_Core_STM32) for STM32F/L/H/G/WB/MP1 boards (Nucleo-144 NUCLEO_F767ZI, Nucleo-64 NUCLEO_L053R8, etc.). [![GitHub release](https://img.shields.io/github/release/stm32duino/Arduino_Core_STM32.svg)](https://github.com/stm32duino/Arduino_Core_STM32/releases/latest)
  4. [`Teensy core 1.53+`](https://www.pjrc.com/teensy/td_download.html) for Teensy (4.1, 4.0, 3.6, 3.5, 3,2, 3.1, 3.0, LC) boards
  5. [`Arduino SAM DUE core v1.6.12+`](https://github.com/arduino/ArduinoCore-sam) for SAM DUE ARM Cortex-M3 boards.
  6. [`Arduino SAMD core 1.8.11+`](https://github.com/arduino/ArduinoCore-samd) for SAMD ARM Cortex-M0+ boards. [![GitHub release](https://img.shields.io/github/release/arduino/ArduinoCore-samd.svg)](https://github.com/arduino/ArduinoCore-samd/releases/latest)
- 7. [`Adafruit SAMD core 1.6.5+`](https://github.com/adafruit/ArduinoCore-samd) for SAMD ARM Cortex-M0+ and M4 boards (Nano 33 IoT, etc.). [![GitHub release](https://img.shields.io/github/release/adafruit/ArduinoCore-samd.svg)](https://github.com/adafruit/ArduinoCore-samd/releases/latest)
+ 7. [`Adafruit SAMD core 1.6.8+`](https://github.com/adafruit/ArduinoCore-samd) for SAMD ARM Cortex-M0+ and M4 boards (Nano 33 IoT, etc.). [![GitHub release](https://img.shields.io/github/release/adafruit/ArduinoCore-samd.svg)](https://github.com/adafruit/ArduinoCore-samd/releases/latest)
  8. [`Seeeduino SAMD core 1.8.1+`](https://github.com/Seeed-Studio/ArduinoCore-samd) for SAMD21/SAMD51 boards (XIAO M0, Wio Terminal, etc.). [![Latest release](https://img.shields.io/github/release/Seeed-Studio/ArduinoCore-samd.svg)](https://github.com/Seeed-Studio/ArduinoCore-samd/releases/latest/)
  9. [`Adafruit nRF52 v0.21.0+`](https://github.com/adafruit/Adafruit_nRF52_Arduino) for nRF52 boards such as Adafruit NRF52840_FEATHER, NRF52832_FEATHER, NRF52840_FEATHER_SENSE, NRF52840_ITSYBITSY, NRF52840_CIRCUITPLAY, NRF52840_CLUE, NRF52840_METRO, NRF52840_PCA10056, PARTICLE_XENON, **NINA_B302_ublox**, etc. [![GitHub release](https://img.shields.io/github/release/adafruit/Adafruit_nRF52_Arduino.svg)](https://github.com/adafruit/Adafruit_nRF52_Arduino/releases/latest)
-10. [`Ai-Thinker AT Firmware v1.5.4`](AT_Firmwares/At_firmware_bin1.54.zip) or [`AT Firmware v1.7.4.0`](AT_Firmwares/AT_Firmware_bin_1.7.4.0.zip) for ESP8266-AT shields.
-11. [`AT version_2.1.0.0_dev`](AT_Firmwares/AT_version_2.1.0.0_dev.zip) for ESP32-AT shields.
-12. `AT version_1.1.4` for WIS600-01S and W600-AT WiFi shields.
+10. [`Earle Philhower's arduino-pico core v1.2.1+`](https://github.com/earlephilhower/arduino-pico) for RP2040-based boards such as **RASPBERRY_PI_PICO, ADAFRUIT_FEATHER_RP2040 and GENERIC_RP2040**, etc. [![GitHub release](https://img.shields.io/github/release/earlephilhower/arduino-pico.svg)](https://github.com/earlephilhower/arduino-pico/releases/latest)
+11. [`Ai-Thinker AT Firmware v1.5.4`](AT_Firmwares/At_firmware_bin1.54.zip) or [`AT Firmware v1.7.4.0`](AT_Firmwares/AT_Firmware_bin_1.7.4.0.zip) for ESP8266-AT shields.
+12. [`AT version_2.1.0.0_dev`](AT_Firmwares/AT_version_2.1.0.0_dev.zip) for ESP32-AT shields.
+13. `AT version_1.1.4` for WIS600-01S and W600-AT WiFi shields.
 
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@@ -247,7 +247,7 @@ Another way to install is to:
 
 1. Install [VS Code](https://code.visualstudio.com/)
 2. Install [PlatformIO](https://platformio.org/platformio-ide)
-3. Install [**ESP_AT_Lib** library](https://platformio.org/lib/show/7511/ESP_AT_Lib) by using [Library Manager](https://platformio.org/lib/show/7511/ESP_AT_Lib/installation). Search for **ESP_AT_Lib** in [Platform.io Author's Libraries](https://platformio.org/lib/search?query=author:%22Khoi%20Hoang%22)
+3. Install [**ESP_AT_Lib** library](https://platformio.org/lib/show/7511/ESP_AT_Lib) or [**Updated ESP_AT_Lib** library](https://platformio.org/lib/show/12143/ESP_AT_Lib) by using [Library Manager](https://platformio.org/lib/show/7511/ESP_AT_Lib/installation). Search for **ESP_AT_Lib** in [Platform.io Author's Libraries](https://platformio.org/lib/search?query=author:%22Khoi%20Hoang%22)
 4. Use included [platformio.ini](platformio/platformio.ini) file from examples to ensure that all dependent libraries will installed automatically. Please visit documentation for the other options and examples at [Project Configuration File](https://docs.platformio.org/page/projectconf.html)
 
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