init

Author: koendv

README.md

@@ -159,6 +159,7 @@ First, in boards.txt change ram size, flash size, minimum free ram, and see if y
 
 ## References
 - [MM32SPIN27 datasheet](mm32/doc/pdf/DS_MM32SPIN2x_p_EN.pdf) (English)
+- [MM32SPIN27 product page](https://mindmotion.com.cn/en/development_tools/info.aspx?itemid=3388) (English)
 - [HAL library from MindMotion](https://mindmotion.com.cn/products/mm32mcu/mm32spin/mm32spin_specific_mcu/mm32spin2x/)
 - [SeekFree library for the MM32SPIN27](https://gitee.com/seekfree/MM32SPIN27_Library)
 - [ArduinoCore-API](https://github.com/arduino/ArduinoCore-API)