docs: replace 'state_modifier' with 'prompt' (#3190)

docs/docs/tutorials/multi_agent/agent_supervisor.ipynb

@@ -201,7 +201,7 @@
     "\n",
     "\n",
     "research_agent = create_react_agent(\n",
-    "    llm, tools=[tavily_tool], state_modifier=\"You are a researcher. DO NOT do any math.\"\n",
+    "    llm, tools=[tavily_tool], prompt=\"You are a researcher. DO NOT do any math.\"\n",
     ")\n",
     "\n",
     "\n",

docs/docs/tutorials/multi_agent/hierarchical_agent_teams.ipynb

@@ -525,7 +525,7 @@
     "doc_writer_agent = create_react_agent(\n",
     "    llm,\n",
     "    tools=[write_document, edit_document, read_document],\n",
-    "    state_modifier=(\n",
+    "    prompt=(\n",
     "        \"You can read, write and edit documents based on note-taker's outlines. \"\n",
     "        \"Don't ask follow-up questions.\"\n",
     "    ),\n",
@@ -548,7 +548,7 @@
     "note_taking_agent = create_react_agent(\n",
     "    llm,\n",
     "    tools=[create_outline, read_document],\n",
-    "    state_modifier=(\n",
+    "    prompt=(\n",
     "        \"You can read documents and create outlines for the document writer. \"\n",
     "        \"Don't ask follow-up questions.\"\n",
     "    ),\n",

docs/docs/tutorials/multi_agent/multi-agent-collaboration.ipynb

@@ -190,7 +190,7 @@
     "research_agent = create_react_agent(\n",
     "    llm,\n",
     "    tools=[tavily_tool],\n",
-    "    state_modifier=make_system_prompt(\n",
+    "    prompt=make_system_prompt(\n",
     "        \"You can only do research. You are working with a chart generator colleague.\"\n",
     "    ),\n",
     ")\n",
@@ -220,7 +220,7 @@
     "chart_agent = create_react_agent(\n",
     "    llm,\n",
     "    [python_repl_tool],\n",
-    "    state_modifier=make_system_prompt(\n",
+    "    prompt=make_system_prompt(\n",
     "        \"You can only generate charts. You are working with a researcher colleague.\"\n",
     "    ),\n",
     ")\n",

docs/docs/tutorials/plan-and-execute/plan-and-execute.ipynb

@@ -143,7 +143,7 @@
     "# Choose the LLM that will drive the agent\n",
     "llm = ChatOpenAI(model=\"gpt-4-turbo-preview\")\n",
     "prompt = \"You are a helpful assistant.\"\n",
-    "agent_executor = create_react_agent(llm, tools, state_modifier=prompt)"
+    "agent_executor = create_react_agent(llm, tools, prompt=prompt)"
    ]
   },
   {