feat:更新MySQL博客

docs/.vitepress/theme/router/index.ts

@@ -43,12 +43,18 @@ export const routers = [
           { text: '基于OAuth2的安全验证', link: '/Web-Backend/FastAPI/OAuth2' }
         ]
       },
+      { 
+        text: '🐬 MySQL',
+        items: [
+          { text: 'MyBatis简介和使用', link: '/Web-Backend/MySQL/MyBatis' },
+          { text: 'Flyway简单使用', link: '/Web-Backend/MySQL/Flyway' },
+          { text: 'MySQL知识点', link: '/Web-Backend/MySQL/MySQL-Knowledge' },
+          { text: 'SQL高阶用法', link: '/Web-Backend/MySQL/SQL-Advance' }
+        ]
+      },
       { 
         text: '🔄 其他',
         items: [
-          { text: 'MySQL知识点', link: '/Web-Backend/Others/MySQL-Knowledge' },
-          { text: 'Flyway简单使用', link: '/Web-Backend/Others/Flyway' },
-          { text: 'MyBatis简介和使用', link: '/Web-Backend/Others/MyBatis' },
           { text: 'RustFS简介和使用', link: '/Web-Backend/Others/RustFS' },
           { text: 'AList简介和使用', link: '/Web-Backend/Others/AList' },
           { text: '网络编程简介', link: '/Web-Backend/Others/Netword-Program' }
@@ -63,7 +69,7 @@ export const routers = [
       { text: 'Jenkins部署和使用', link: '/DevOps/Jenkins' },
       { text: 'ElasticSearch部署和使用', link: '/DevOps/ElasticSearch' },
       { text: 'Docker简介和安装', link: '/DevOps/Docker' }  
-      ]
+    ]
   },
   { 
     text: '📱 Flutter',