v1.2.0 to add support to RPi-Pico

### Releases v1.2.0

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**

Author: khoih-prog

README.md

@@ -86,14 +86,14 @@
   * [2. MQTT_ThingStream on Adafruit SAMD51 ITSYBITSY_M4 using ESP8266-AT shield](#2-mqtt_thingstream-on-adafruit-samd51-itsybitsy_m4-using-esp8266-at-shield)
   * [3. MQTTClient_Auth on Adafruit SAMD51 ITSYBITSY_M4 using ESP8266-AT shield](#3-mqttclient_auth-on-adafruit-samd51-itsybitsy_m4-using-esp8266-at-shield)
   * [4. MQTTClient_Basic on Adafruit SAMD51 ITSYBITSY_M4 using ESP8266-AT shield](#4-mqttclient_basic-on-adafruit-samd51-itsybitsy_m4-using-esp8266-at-shield)
-  * [5. WebClientRepeating on RASPBERRY_PI_PICO using ESP8266-AT shield](#5-webclienrRepeating-on-raspberry_pi_pico-using-esp8266-at-shield)
+  * [5. WebClientRepeating on RASPBERRY_PI_PICO using ESP8266-AT shield](#5-webclientrepeating-on-raspberry_pi_pico-using-esp8266-at-shield)
   * [6. MQTTClient_Auth on RASPBERRY_PI_PICO using ESP8266-AT shield](#6-mqttclient_auth-on-raspberry_pi_pico-using-esp8266-at-shield)
 * [Screen Shots](#screen-shots)
   * [1. SAMD51 Itsy-Bitsy M4](#1-samd51-itsy-bitsy-m4)
   * [2. STM32 Nucleo-144 NUCLEO_F767ZI](#2-stm32-nucleo-144-nucleo_f767zi)
   * [3. nRF52 Itsy-Bitsy nRF52840](#3-nrf52-itsy-bitsy-nrf52840)
   * [4. Seeeduino SEEED_XIAO_M0](#4-seeeduino-seeed_xiao_m0)
-  * [5. RASPBERRY_PI_PICO](#4-raspberry_pi_pico)
+  * [5. RASPBERRY_PI_PICO](#5-raspberry_pi_pico)
 * [Debug](#debug)
 * [Troubleshooting](#troubleshooting)
 * [Releases](#releases)