51d: update RtdProvider doc

Author: justadreamer

dev-docs/modules/51DegreesRtdProvider.md

@@ -68,7 +68,7 @@ In order to use the module please first obtain a Resource Key using the [Configu
 * ScreenInchesWidth
 * PixelRatio
 
-The API is free to integrate and use. However the free tier has certain limitations. Please check [51Degrees pricing](https://51degrees.com/pricing) to choose a plan that suits your needs.
+The Cloud API is **free** to integrate and use. To increase limits please check [51Degrees pricing](https://51degrees.com/pricing).
 
 #### User Agent Client Hint (UA-CH) Permissions