docs: update readme for github markdown

Author: agalwood

README-CN.md

@@ -63,6 +63,7 @@ sudo apt --fix-broken install
 Motrix 已经上架 [Snapcraft](https://snapcraft.io/motrix) ，Ubuntu 用户推荐从 Snap 商店下载。
 
 v1.5.10 提示
+
 系统托盘可能无法正常显示指示器，导致退出应用程序不方便。
 请取消勾选 偏好设置——基本设置——隐藏应用程序菜单（仅限Windows和Linux），点击保存并应用。然后点击 "文件 "菜单中的 "退出"，退出应用程序。
 

README.md

@@ -64,6 +64,7 @@ sudo apt --fix-broken install
 Motrix has been listed on [Snapcraft](https://snapcraft.io/motrix) , Ubuntu users recommend downloading from the Snap Store.
 
 Tips for v1.5.10
+
 The tray may not display the indicator normally, which makes it inconvenient to exit the application.
 
 Please unchecked Preferences--Basic Settings--Hide App Menu (Windows & Linux Only), click Save & Apply. Then click "Exit" in the File menu to exit the application.