Update README to reflect server port change from 8000 to 7860

- Modified the README file to update the command for running the application, changing the server port to 7860 to align with recent configuration updates.
- This change ensures that users have the correct instructions for launching the application with the new port settings.

README.md

@@ -64,7 +64,7 @@ pip install -r requirements.txt
 ### 5. Running the Application
 
 ```bash
-uvicorn main:app --host 0.0.0.0 --port 8000
+uvicorn main:app --host 0.0.0.0 --port 7860
 ```
 
 ## API Endpoints