docs:添加README

README.md

-# initial
-
-## Project setup
-```
-npm install
-```
-
-### Compiles and hot-reloads for development
-```
-npm run serve
-```
-
-### Compiles and minifies for production
-```
-npm run build
-```
-
-### Lints and fixes files
-```
-npm run lint
-```
-
-### Customize configuration
-See [Configuration Reference](https://cli.vuejs.org/config/).
+后端地址反代, 地址由后端提供：
+/proxyApi 
+证书下载反代，地址由前端部署：
+/proxyDowload   http://121.40.18.70:3001