Fix repo url for xAI.Protocol

Author: kzu

src/xAI.Protocol/readme.md

@@ -1,6 +1,6 @@
 [![EULA](https://img.shields.io/badge/EULA-OSMF-blue?labelColor=black&color=C9FF30)](osmfeula.txt)
 [![OSS](https://img.shields.io/github/license/devlooped/oss.svg?color=blue)](license.txt) 
-[![GitHub](https://img.shields.io/badge/-source-181717.svg?logo=GitHub)](https://github.com/devlooped/GrokClient)
+[![GitHub](https://img.shields.io/badge/-source-181717.svg?logo=GitHub)](https://github.com/devlooped/xAI)
 
 Grok client based on the official gRPC API reference from xAI