fix api reference (#2475)

docs/pipeline_usage/tutorials/information_extraction_pipelines/document_scene_information_extraction.en.md

@@ -1014,7 +1014,7 @@ Below are the API references and multi-language service invocation examples:
 <li><b><code>chat</code></b></li>
 </ul>
 <p>Interact with large language models to extract key information.</p>
-<p><code>POST /chatocr-vision</code></p>
+<p><code>POST /chatocr-chat</code></p>
 <ul>
 <li>Request body properties:</li>
 </ul>

docs/pipeline_usage/tutorials/information_extraction_pipelines/document_scene_information_extraction.md

@@ -983,7 +983,7 @@ chat_result.print()
 <li><b><code>chat</code></b></li>
 </ul>
 <p>与大语言模型交互，利用大语言模型提炼关键信息。</p>
-<p><code>POST /chatocr-vision</code></p>
+<p><code>POST /chatocr-chat</code></p>
 <ul>
 <li>请求体的属性如下：</li>
 </ul>