Add appveyor tests badge

Author: mykter

README.md

@@ -1,10 +1,12 @@
 # TagTime-desktop
 
 [![Linux & macOS Build Status](https://travis-ci.org/mykter/TagTime-desktop.svg?branch=master)](https://travis-ci.org/mykter/TagTime-desktop)
-[![Windows Build status](https://ci.appveyor.com/api/projects/status/vo15dgoqrb6k4fc4?svg=true)](https://ci.appveyor.com/project/mykter/tagtime-desktop)
 ![Greenkeeper Badge](https://badges.greenkeeper.io/mykter/TagTime-desktop.svg)
 [![bitHound Overall Score](https://www.bithound.io/github/mykter/TagTime-desktop/badges/score.svg)](https://www.bithound.io/github/mykter/TagTime-desktop)
 
+[![Windows Build status](https://ci.appveyor.com/api/projects/status/vo15dgoqrb6k4fc4?svg=true)](https://ci.appveyor.com/project/mykter/tagtime-desktop)
+[![AppVeyor tests](https://img.shields.io/appveyor/tests/mykter/TagTime-desktop.svg)](https://ci.appveyor.com/project/mykter/tagtime-desktop/build/tests)
+
 [![Latest (pre)release](https://img.shields.io/github/release/mykter/TagTime-desktop/all.svg)](https://github.com/mykter/TagTime-desktop/releases)
 
 This is a cross-platform desktop GUI implementation of [TagTime](https://github.com/dreeves/TagTime).