update

Author: linglingye001

articles/azure-app-configuration/howto-targetingfilter-go-gin.md renamed to articles/azure-app-configuration/howto-targetingfilter-go.md

@@ -74,7 +74,7 @@ In this article, you will learn how to add and configure a targeting filter for
 
     - [ASP.NET Core](./howto-targetingfilter-aspnet-core.md)
     - [Node.js](./howto-targetingfilter-javascript.md)
-    - [Go Gin](./howto-targetingfilter-go-gin.md)
+    - [Go Gin](./howto-targetingfilter-go.md)
 
 ## Next steps