Update README.md

Author: xudaolong

README.md

@@ -25,7 +25,7 @@ MacOS 10.14/10.13/10.12/10.11 \(Mojave, High Sierra, Sierra...\) **Or** Windows
 Most features are free and you want to support the author by
 
 - [Codeexpander 永久版-面包多](https://mianbaoduo.com/o/bread/ZZ6bl5w=)
-- [Codeexpander 永久版-Paddle](https://pay.paddle.com/checkout/540339)
+- [Codeexpander 永久版-Paddle](https://pay.codeexpander.com/)
 
 Please contact me if you have any questions