update readme

README.en.md

@@ -18,6 +18,12 @@ If you also like a little more simplicity, welcome to pick it up.
 
 - Keep it simple, smart
 
+## Shortcut keys
+
+- `Alt+Q` Toggle Translation
+- `Alt+C` Toggle Styles
+- `Alt+K` Open Menu
+
 ## Schedule
 
 - [x] Provide trial installation package

README.md

@@ -18,6 +18,12 @@
 
 - 保持简约
 
+## 快捷键
+
+- `Alt+Q` 开启翻译
+- `Alt+C` 切换样式
+- `Alt+K` 打开菜单
+
 ## 进度
 
 - [x] 提供试用安装包