add XIAO

Author: “Jasionf”

README.md

@@ -12,6 +12,7 @@ A fork of the NimBLE stack refactored for compilation in the Arduino IDE.
 ## Supported MCU's
  - Espressif: ESP32, ESP32C3, ESP32S3
  - Nordic: nRF51, nRF52 series (**Requires** using [n-able arduino core](https://github.com/h2zero/n-able-Arduino))
+ - Seeed Studio: [XIAO ESP32-C3](https://www.seeedstudio.com/Seeed-XIAO-ESP32C3-p-5431.html)、[XIAO ESP32-C6](https://www.seeedstudio.com/Seeed-Studio-XIAO-ESP32C6-p-5884.html)、[XIAO ESP32-S3](https://www.seeedstudio.com/XIAO-ESP32S3-p-5627.html)
 
 **Note for ESP-IDF users: This repo will not compile correctly in ESP-IDF. An ESP-IDF component version of this library can be [found here.](https://github.com/h2zero/esp-nimble-cpp)**