chore: 开放捐赠 :)

README.md

@@ -155,6 +155,12 @@ $ npm test
 
 [![Stargazers over time](https://starcharts.herokuapp.com/modood/Administrative-divisions-of-China.svg)](https://starcharts.herokuapp.com/modood/Administrative-divisions-of-China)
 
+## Buy me a coffee
+
+![alipay](https://modood.com/images/alipay.jpg)
+
+![wechat](https://modood.com/images/wechat.jpg)
+
 ## Contributing
 
 1. Fork it