Update app.py

app.py

@@ -2456,7 +2456,7 @@ def generate_query_tree(context: str, breadth: int, depth: int, selected_engines
     # If selected_engines is None, provide a fallback string
     list_engines = "all relevant search engines" if selected_engines is None else ','.join(map(str, selected_engines))
     
-prompt = f"""
+    prompt = f"""
 Generate {breadth} search queries for academic research exploring: "{context}"
 
 // Research Strategy Requirements