Update README.md

Author: bimadevs

README.md

@@ -22,7 +22,7 @@ streamlit run main.py
 
 ## Configuration
 
-Before running the app, you need to configure your API key in the `app.py` file. Replace `YOUR GEMINI KEY` with your actual API key to enable the AI functionalities.
+Before running the app, you need to configure your API key in the `main.py` file. Replace `YOUR GEMINI KEY` with your actual API key to enable the AI functionalities.
 
 You can also select the Gemini model you want and even tell Gemini to use a specific CSS framework.