README.md in rage-rb-0.5.2 vs README.md in rage-rb-0.6.0

- old
+ new

@@ -50,9 +50,10 @@
 
 - [Controller API](https://rage-rb.pages.dev/RageController/API)
 - [Routing API](https://rage-rb.pages.dev/Rage/Router/DSL/Handler)
 - [Fiber API](https://rage-rb.pages.dev/Fiber)
 - [Logger API](https://rage-rb.pages.dev/Rage/Logger)
+- [Configuration API](https://rage-rb.pages.dev/Rage/Configuration)
 
 Also, see the [changelog](https://github.com/rage-rb/rage/blob/master/CHANGELOG.md) and [upcoming-releases](https://github.com/rage-rb/rage#upcoming-releases) for currently supported and planned features.
 
 ### Example
 