docs: Add text_to_speech left out in the API response (#19862)

web/app/components/develop/template/template_advanced_chat.zh.mdx

@@ -1199,6 +1199,13 @@ import { Row, Col, Properties, Property, Heading, SubProperty } from '../md.tsx'
       - `enabled` (bool) 是否开启
     - `speech_to_text` (object) 语音转文本
       - `enabled` (bool) 是否开启
+    - `text_to_speech` (object) 文本转语音
+      - `enabled` (bool) 是否开启
+      - `voice` (string) 语音类型
+      - `language` (string) 语言
+      - `autoPlay` (string) 自动播放
+        - `enabled`  开启
+        - `disabled` 关闭
     - `retriever_resource` (object) 引用和归属
       - `enabled` (bool) 是否开启
     - `annotation_reply` (object) 标记回复