Update README.md

Author: megai2

README.md

@@ -4,6 +4,8 @@ Core addon loading library for Guild wars 2
 
 Original idea: https://github.com/Archomeda/gw2-addon-loader
 
+[![Build status](https://ci.appveyor.com/api/projects/status/m356po5lxrq24vng?svg=true)](https://ci.appveyor.com/project/megai2/loader-core)
+
 [![](https://img.shields.io/discord/384735285197537290.svg?logo=discord&logoColor=f0f0f0)](https://discord.gg/5epjQEj)
 
 # Features