add image reference to llm-app/cookbooks (#8052)

GitOrigin-RevId: ca734b04066ad5796f2535b0dd573bcdb3697020

Author: berkecanrizai

cookbooks/self-rag-agents/pathway_deploy_langgraph_agents.ipynb

@@ -384,7 +384,8 @@
     "* Output: `{5, 4, 3, 2, 1}`\n",
     "\n",
     "We will implement some of these ideas from scratch using [LangGraph](https://langchain-ai.github.io/langgraph/).\n",
-    "![image.png](attachment:76895b7a-fcc5-4758-9fbb-510b17fdeda4.png)"
+    "![image.png](attachment:76895b7a-fcc5-4758-9fbb-510b17fdeda4.png)\n",
+    "> Figure taken from the LangGraph cookbook"
    ]
   },
   {

cookbooks/self-rag-agents/pathway_langgraph_agentic_rag.ipynb

@@ -396,7 +396,8 @@
     "* `y (generation)` is a useful response to `x (question)`.\n",
     "* Output: `{5, 4, 3, 2, 1}`\n",
     "\n",
-    "We will implement some of these ideas from scratch using [LangGraph](https://langchain-ai.github.io/langgraph/).![image.png](attachment:ac58a69e-7bf3-481f-baea-1b9d6c6eba00.png)"
+    "We will implement some of these ideas from scratch using [LangGraph](https://langchain-ai.github.io/langgraph/).![image.png](attachment:ac58a69e-7bf3-481f-baea-1b9d6c6eba00.png)\n",
+    "> Figure taken from the LangGraph cookbook"
    ]
   },
   {