官网：
https://www.yoctoproject.org/
https://www.yoctoproject.org/is-yocto-project-for-you/
学习：
https://zhuanlan.zhihu.com/p/67453665
https://blog.csdn.net/yangteng0210/article/details/81566950
http://www.eepw.com.cn/article/201610/305448.htm
https://www.jianshu.com/p/8a1d7cbe28a0