Update README.md

Author: rory0807

moumoubaimifan/README.md

@@ -9,6 +9,8 @@ Python技术 公众号文章代码库
 
 ## 实例代码
 
+[20 行代码，微信头像上加冰墩墩](https://github.com/JustDoPython/python-examples/blob/master/moumoubaimifan/bdd/)
+
 [煎蛋网全站妹子图爬虫](https://github.com/JustDoPython/python-examples/blob/master/moumoubaimifan/jandan.py)
 
 [自动录制 python 脚本的爬虫利器 Playwright！](https://github.com/JustDoPython/python-examples/blob/master/moumoubaimifan/playwright)