Add AppVeyor.

README.md

@@ -3,6 +3,7 @@
 [![Build Status](https://travis-ci.org/vanniktech/gradle-dependency-graph-generator-plugin.svg?branch=master)](https://travis-ci.org/vanniktech/gradle-dependency-graph-generator-plugin?branch=master)
 [![Codecov](https://codecov.io/github/vanniktech/gradle-dependency-graph-generator-plugin/coverage.svg?branch=master)](https://codecov.io/github/vanniktech/gradle-dependency-graph-generator-plugin?branch=master)
 [![License](http://img.shields.io/:license-apache-blue.svg)](http://www.apache.org/licenses/LICENSE-2.0.html)
+[![Build status](https://ci.appveyor.com/api/projects/status/a0umitv5qvin5e6w/branch/master?svg=true)](https://ci.appveyor.com/project/vanniktech/gradle-dependency-graph-generator-plugin/branch/master)
 
 Gradle plugin that lets you visualize your dependencies in a graph.
 

appveyor.yml

@@ -0,0 +1,12 @@
+environment:
+  matrix:
+    - ANDROID_HOME: "C:\\android-sdk-windows"
+install:
+  - appveyor DownloadFile https://dl.google.com/android/repository/sdk-tools-windows-3859397.zip
+  - 7z x sdk-tools-windows-3859397.zip -oC:\android-sdk-windows > nul
+  - yes | C:\android-sdk-windows\tools\bin\sdkmanager.bat --licenses
+  - choco install graphviz
+build_script:
+  - gradlew.bat assemble
+test_script:
+  - gradlew.bat test