Format file names in project structure section

Updated project structure section to use backticks for file names.

Author: TagSteel

README.md

@@ -32,14 +32,14 @@ AutoLogout is a lightweight desktop utility that helps secure shared workstation
 
 ## Project Structure
 
-- app.py: Tkinter desktop UI and app lifecycle
-- auto_logout/orchestrator.py: cleanup pipeline orchestration
-- auto_logout/browser_cleanup.py: browser data cleanup logic
-- auto_logout/app_cleanup.py: selected app cleanup
-- auto_logout/triggers.py: idle timer + Windows session hook
-- auto_logout/system_utils.py: process and file helpers
-- auto_logout/config.py: settings, paths, defaults
-- auto_logout/action_logger.py: rotating file logger
+- `app.py`: Tkinter desktop UI and app lifecycle
+- `auto_logout/orchestrator.py`: cleanup pipeline orchestration
+- `auto_logout/browser_cleanup.py`: browser data cleanup logic
+- `auto_logout/app_cleanup.py`: selected app cleanup
+- `auto_logout/triggers.py`: idle timer + Windows session hook
+- `auto_logout/system_utils.py`: process and file helpers
+- `auto_logout/config.py`: settings, paths, defaults
+- `auto_logout/action_logger.py`: rotating file logger
 
 ## Requirements