Fix indentation in app.py and remove redundant feature list from the Gradio interface description for improved clarity.

app.py

@@ -514,7 +514,7 @@ def clear_history() -> tuple:
     """Clear the conversation history."""
     return [], ""
 
-# Create the Gradio interface
+        # Create the Gradio interface
 with gr.Blocks(
     title="📚 AI Research Paper Chatbot",
     theme=gr.themes.Soft(),
@@ -530,12 +530,6 @@ with gr.Blocks(
         # 📚 AI Research Paper Chatbot
         
         Chat with an AI assistant that can intelligently retrieve and analyze research papers.
-        
-        **Features:**
-        - 📖 Smart paper retrieval using function calling
-        - 💬 Contextual conversation memory
-        - 🚀 Efficient token usage
-        - 🎛️ Multiple model selection
         """
     )