Update readme.md to fix gitpod link for IPP Paymens Example

Author: Kwok-he-Chu

in-person-payments-example/readme.md

@@ -1,7 +1,7 @@
 # Adyen [In-person Payment Demo](https://docs.adyen.com/point-of-sale/) Integration Demo
 
 ## Run demo in one-click
-[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/adyen-examples/adyen-java-spring-online-payments/tree/main/in-person-payments-example)
+[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/adyen-examples/adyen-dotnet-online-payments/tree/main/in-person-payments-example)
 
 [First time with Gitpod?](https://github.com/adyen-examples/.github/blob/main/pages/gitpod-get-started.md)