Update claude_3_rag_agent.ipynb

minor fix

third_party/Pinecone/claude_3_rag_agent.ipynb

@@ -1000,7 +1000,7 @@
  "id": "T3pA0o6ZnrAl"
  },
  "source": [
- "Now we can see that _two_ messages have been added, our `HumanMessage` the the agent's `AIMessage` response. Unfortunately, we cannot send these messages to our XML agent directly. Instead, we need to pass a string in the format:\n",
+ "Now we can see that _two_ messages have been added, our `HumanMessage` the agent's `AIMessage` response. Unfortunately, we cannot send these messages to our XML agent directly. Instead, we need to pass a string in the format:\n",
  "\n",
  "```\n",
  "Human: {human message}\n",