docs: Update README.md

Author: xC0dex

README.md

@@ -37,19 +37,21 @@ if (app.Environment.IsDevelopment())
 }
 ```
 
-That's it. You now have a fully functional Swagger UI in your application. The UI can be accessed by navigating to `/swagger` in your browser 🥳. A more detailed guide with more use cases can be found [here](/docs/Getting-Started.md).
+That's it. You now have a fully functional Swagger UI in your application. The UI can be accessed by navigating to `/swagger` in your browser 🥳. A more detailed guide with more use cases can be found [here](https://github.com/xC0dex/APIWeaver/blob/main/docs/Getting-Started.md).
 
 ## Currently supported features
 
 - Fully functional and configurable Swagger UI (with dark mode 🌙)
 - OpenAPI 3.0 generation
 - Document generation based on minimal APIs
 - .NET 6, 7 and 8 including required members, nullable types and latest validation attributes
+- `System.Text.Json` including serializer options like IncludeFields, IgnoreReadOnlyFields, IgnoreReadOnlyProperties and more
+- Custom transformers to modify the generated OpenAPI document asynchronously
 
 ## Roadmap
 
 - Support for controller based APIs (https://github.com/xC0dex/APIWeaver/issues/27)
-- Full `System.Text.Json` support ([Milestone](https://github.com/xC0dex/APIWeaver/milestone/1))
+- Full support for discriminators (https://github.com/xC0dex/APIWeaver/issues/21)
 - Security definitions for OpenAPI documents
 - API client generation based on the generated OpenAPI document
 - ... and many more