Add screenshot in readme

README.md

@@ -1,8 +1,19 @@
 # qb-web
 ## Info
-[![Release](https://img.shields.io/github/release-pre/CzBiX/qb-web.svg?label=Pre-release)](https://github.com/CzBiX/qb-web/releases/latest)
-[![Requirements](https://img.shields.io/badge/Tested-qBittorrent%20≥%20v4.1.5-brightgreen.svg)](#)
+[![Requirements](https://img.shields.io/badge/Tested-qBittorrent%20≥%20v4.1.5-brightgreen)](#)
+[![Release](https://img.shields.io/github/v/release/CzBiX/qb-web?include_prereleases)](https://github.com/CzBiX/qb-web/releases/latest)
+
+Languages: English,中文
 
 ## Download
 
-[Releases](https://github.com/CzBiX/qb-web/releases)
+[Releases](https://github.com/CzBiX/qb-web/releases/latest)
+
+## Install
+
+see: [INSTALL.md](./INSTALL.md)
+
+## Screenshot
+
+![Main](./screenshot/main.png)
+![Add torrents](./screenshot/add-torrents.png)