Update app.py

app.py

@@ -170,7 +170,7 @@ def create_slides(slides: list[dict], title: str, instructor_name: str, output_d
         logger.error("Failed to create HTML slides: %s", str(e))
         return []
 
-# Dynamic progress bar
+# progress bar
 def html_with_progress(label, progress):
     return f"""
     <div style="display: flex; flex-direction: column; justify-content: center; align-items: center; height: 100%; min-height: 700px; padding: 20px; text-align: center; border: 1px solid #ddd; border-radius: 8px;">