fix some errors

Author: ylxmf2005

docs/development-guide/live-dev.md

@@ -11,7 +11,7 @@ sidebar_position: 3
 - **Open-LLM-VTuber 主进程**: 运行 AI、TTS 等核心服务。
 - **前端 UI (用户界面)**: 展示 Live2D 模型、接收用户 (直播间管理员) 输入、播放音频等。
 
-**关键连接拓扑:**
+**架构图**
 
 ```mermaid
 graph LR

i18n/en/docusaurus-plugin-content-docs/current/development-guide/live-dev.md

@@ -11,7 +11,7 @@ The live streaming integration in this project adopts a **separate process** arc
 - **Open-LLM-VTuber Main Process**: Runs AI, TTS, and other core services.
 - **Frontend UI (User Interface)**: Displays the Live2D model, receives user (the room admin) input, plays audio, etc.
 
-**Key Connection Topology:**
+**Architecture Diagram**
 
 ```mermaid
 graph LR