Update README.md

Author: KittyChiu

README.md

@@ -13,7 +13,7 @@ Metrics that are evaluated are:
 
 ## Example use cases
 
-- As a product engineer, I want to identify areas for improvement for my process automation, so that I can improve delivery in next iteration.
+- As a product engineer, I want to identify areas of improvement for my process automation, so that I can improve delivery in next iteration.
 - As a engineering manager, I want to identify waste and inefficiencies in my SDLC process, so that I can reduce cycle time and improve velocity.
 - As a DevOps platform owner, I want to identify long running workflows, so that I can right-sizing the runners.