📛 Add badges for GitHub Actions workflows

README.md

@@ -1,7 +1,8 @@
 <img src="Shadowsocks.WPF/Resources/ssw128.png" alt="[logo]" width="48"/> Shadowsocks for Windows
 =======================
 
-[![Build Status](https://ci.appveyor.com/api/projects/status/tfw57q6eecippsl5/branch/master?svg=true)](https://ci.appveyor.com/project/celeron533/shadowsocks-windows)
+[![Build](https://github.com/shadowsocks/shadowsocks-windows/workflows/Build/badge.svg)](https://github.com/shadowsocks/shadowsocks-windows/actions?query=workflow%3ABuild)
+[![Release](https://github.com/shadowsocks/shadowsocks-windows/workflows/Release/badge.svg)](https://github.com/shadowsocks/shadowsocks-windows/actions?query=workflow%3ARelease)
 
 ## Features