Update README.md

Author: brianaddicks

README.md

@@ -1,4 +1,6 @@
+[![Build status](https://ci.appveyor.com/api/projects/status/78555yuvfi2piaj4?svg=true)](https://ci.appveyor.com/project/brianaddicks/vigilantspoon)
+
 prtgshell2
 ==========
 
-twice as much prtg as the original!
+twice as much prtg as the original!