Update rag_langgraph.py

rag_langgraph.py

@@ -104,7 +104,7 @@ def create_graph(topic, word_count):
     researcher_agent = create_agent(llm, [tavily_tool], system_prompt=f"Prioritizing research papers, research content on topic: {topic}.")
     researcher_node = functools.partial(agent_node, agent=researcher_agent, name="Researcher")
 
-    writer_agent = create_agent(llm, [today_tool], system_prompt=f"Write a {word_count}-word article on topic: {topic}. At the top, add current date and author: Multi-AI-Agent System based on GPT-4o. At the bottom, add a references section with research papers.")
+    writer_agent = create_agent(llm, [today_tool], system_prompt=f"Write a {word_count}-word article on topic: {topic}, including a reference section with research papers. At the top, add current date and author: Multi-AI-Agent System based on GPT-4o.")
     writer_node = functools.partial(agent_node, agent=writer_agent, name="Writer")
 
     workflow = StateGraph(AgentState)