feat: docs: Telegram Bot (#241)

vitepress-docs/docs/.vitepress/zh.ts

@@ -134,6 +134,7 @@ function sidebarGuide(): DefaultTheme.SidebarItem[] {
                 { text: '发送邮件 API', link: 'feature/send-mail-api' },
                 { text: '查看邮件 API', link: 'feature/mail-api' },
                 { text: '配置子域名邮箱', link: 'feature/subdomain' },
+                { text: '配置 Telegram Bot', link: 'feature/telegram' },
             ]
         },
         {

vitepress-docs/docs/zh/guide/feature/telegram.md

@@ -0,0 +1,6 @@
+# 配置 Telegram Bot
+
+- 点击`初始化`即可完成配置。
+- 点击`查看状态`，可以查看当前配置的状态。
+
+![telegram](/feature/telegram.png)