https://blog.wongcw.com/2019/06/18/github%e5%ae%a3%e5%b8%83%e6%94%b6%e8%b3%bcpull-panda%e4%b8%94%e5%85%8d%e8%b2%bb%e6%8f%90%e4%be%9b%e6%9c%8d%e5%8b%99/
GitHub宣布收購Pull Panda且免費提供服務