docs: Update openvino example documents links (#20638)

docs/docs/integrations/document_transformers/openvino_rerank.ipynb

@@ -512,7 +512,7 @@
     "\n",
     "* [OpenVINO Get Started Guide](https://www.intel.com/content/www/us/en/content-details/819067/openvino-get-started-guide.html).\n",
     "\n",
-    "* [RAG Notebook with LangChain](https://github.com/openvinotoolkit/openvino_notebooks/blob/latest/notebooks/llm-chatbot/rag-chatbot.ipynb)."
+    "* [RAG Notebook with LangChain](https://github.com/openvinotoolkit/openvino_notebooks/tree/latest/notebooks/llm-rag-langchain)."
    ]
   }
  ],

docs/docs/integrations/llms/openvino.ipynb

@@ -90,7 +90,7 @@
     "device = \"CPU\"\n",
     "tokenizer = AutoTokenizer.from_pretrained(model_id)\n",
     "ov_model = OVModelForCausalLM.from_pretrained(\n",
-    "    model_id, device=device, ov_config=ov_config\n",
+    "    model_id, export=True, device=device, ov_config=ov_config\n",
     ")\n",
     "ov_pipe = pipeline(\n",
     "    \"text-generation\", model=ov_model, tokenizer=tokenizer, max_new_tokens=10\n",
@@ -185,11 +185,11 @@
     "    pipeline_kwargs={\"max_new_tokens\": 10},\n",
     ")\n",
     "\n",
-    "ov_chain = prompt | ov_llm\n",
+    "chain = prompt | ov_llm\n",
     "\n",
     "question = \"What is electroencephalography?\"\n",
     "\n",
-    "print(ov_chain.invoke({\"question\": question}))"
+    "print(chain.invoke({\"question\": question}))"
    ]
   },
   {
@@ -229,7 +229,7 @@
     "\n",
     "* [OpenVINO Get Started Guide](https://www.intel.com/content/www/us/en/content-details/819067/openvino-get-started-guide.html).\n",
     "  \n",
-    "* [RAG Notebook with LangChain](https://github.com/openvinotoolkit/openvino_notebooks/tree/latest/notebooks/llm-chatbot)."
+    "* [RAG Notebook with LangChain](https://github.com/openvinotoolkit/openvino_notebooks/tree/latest/notebooks/llm-rag-langchain)."
    ]
   }
  ],

docs/docs/integrations/text_embedding/openvino.ipynb

@@ -216,7 +216,7 @@
     "\n",
     "* [OpenVINO Get Started Guide](https://www.intel.com/content/www/us/en/content-details/819067/openvino-get-started-guide.html).\n",
     "\n",
-    "* [RAG Notebook with LangChain](https://github.com/openvinotoolkit/openvino_notebooks/blob/latest/notebooks/llm-chatbot/rag-chatbot.ipynb)."
+    "* [RAG Notebook with LangChain](https://github.com/openvinotoolkit/openvino_notebooks/tree/latest/notebooks/llm-rag-langchain)."
    ]
   }
  ],