Update README.md

README.md

@@ -4,8 +4,8 @@ This straightforward calculator, crafted with Tkinter and Python, provides users
 
 ## Features
 
-- Error Handling: Implement error handling for scenarios where the user inputs invalid expressions, like dividing by zero or entering non-numeric characters.
-- Improve UI Design: Enhance the user interface with better colors, fonts, and layouts. Consider using external libraries or themes to improve the look and feel.
+- Error Handling: Implement error handling for scenarios where the user inputs invalid expressions, like dividing by zero or entering Invalid Expression.
+- Improve UI Design: Enhance the user interface with better active colors, fonts, and layouts. Consider using external libraries to improve the look and feel.
 - Unit Testing: Write unit tests to ensure the correctness of your calculator functions and handle edge cases.
 
 # UI: