Move language specific instructions to sub references folder

skills/appinsights-instrumentation/SKILL.md

@@ -26,7 +26,7 @@ Find out the (programming language, application framework, hosting) tuple of the
 
 ### Prefer auto-instrument if possible
 
-If the app is a C# ASP.NET Core app hosted in Azure App Service, use [AUTO.md](AUTO.md) to help user auto-instrument the app.
+If the app is a C# ASP.NET Core app hosted in Azure App Service, use [AUTO guide](references/AUTO.md) to help user auto-instrument the app.
 
 ### Manually instrument
 
@@ -43,6 +43,6 @@ No matter which option you choose, recommend the user to create the App Insights
 
 #### Modify application code
 
-- If the app is an ASP.NET Core app, see [ASPNETCORE.md](ASPNETCORE.md) for how to modify the C# code.
-- If the app is a Node.js app, see [NODEJS.md](NODEJS.md) for how to modify the JavaScript/TypeScript code.
-- If the app is a Python app, see [PYTHON.md](PYTHON.md) for how to modify the Python code.
+- If the app is an ASP.NET Core app, see [ASPNETCORE guide](references/ASPNETCORE.md) for how to modify the C# code.
+- If the app is a Node.js app, see [NODEJS guide](references/NODEJS.md) for how to modify the JavaScript/TypeScript code.
+- If the app is a Python app, see [PYTHON guide](references/PYTHON.md) for how to modify the Python code.