chore: add deprecation notice

package.json

@@ -1,7 +1,7 @@
 {
   "name": "koishi-plugin-gocqhttp",
   "description": "go-cqhttp launcher for Koishi",
-  "version": "3.8.0",
+  "version": "3.8.1",
   "main": "lib/index.js",
   "typings": "lib/index.d.ts",
   "files": [
@@ -40,8 +40,8 @@
   ],
   "koishi": {
     "description": {
-      "zh": "[go-cqhttp](https://github.com/Mrs4s/go-cqhttp) 启动器",
-      "en": "[go-cqhttp](https://github.com/Mrs4s/go-cqhttp) launcher"
+      "zh": "**[已停止维护]** [go-cqhttp](https://github.com/Mrs4s/go-cqhttp) 启动器",
+      "en": "**[DEPRECATED]** [go-cqhttp](https://github.com/Mrs4s/go-cqhttp) launcher"
     },
     "service": {
       "optional": [

readme.md

@@ -1,3 +1,11 @@
+## 本插件停止维护
+
+请移步：<https://github.com/Mrs4s/go-cqhttp/issues/2471>
+
+愿我们能在更加开放的平行世界再次相遇。
+
+---
+
 # koishi-plugin-gocqhttp
 
 [![npm](https://img.shields.io/npm/v/koishi-plugin-gocqhttp?style=flat-square)](https://www.npmjs.com/package/koishi-plugin-gocqhttp)
@@ -10,7 +18,7 @@
 - [x] 手机短信验证码
 - [x] captcha 图片
 - [x] 滑条验证
-- [ ] 设置登录设备
+- [x] 设置登录设备
 
 ## 安装