Update app.py

app.py

@@ -4,7 +4,11 @@ github : https://github.com/OzlemAkgunoglu
 Dynamic Photo Filter App 
 This is a Dynamic Photo Filter App that allows you to apply various filters to your images. 
 Adjust brightness, contrast, sharpening, and select a filter for real-time changes.
-And this app is created using OpenCV and Gradio. Thank you for using it. '''
+And this app is created using OpenCV and Gradio. Thank you for using it. 
+To activate virtiual enviroment use :  .\.venv\Scripts\activate
+If you have an issue with PS auth use PS command:  Set-ExecutionPolicy -ExecutionPolicy Unrestricted -Scope CurrentUser
+For UI : pip install gradio
+'''
 
 #Let's load the necessary libraries
 import cv2 as cv #OpenCV for image processing