Update README.md

Author: guritfaq

README.md

@@ -19,7 +19,7 @@ pull requests.
 The professional version of our openai-pr-reviewer project is now live at
 [coderabbit.ai](http://Coderabbit.ai). Building upon our open-source foundation,
 CodeRabbit offers premium features including enhanced context and superior 
-noise reduction, dedicated support, and our ongoing commitment to superior code 
+noise reduction, dedicated support, and our ongoing commitment to improve code 
 reviews.