Feat(appveyoe): status

README.md

@@ -1,6 +1,7 @@
 ![php-excel](https://github.com/viest/php-excel-writer/blob/master/resource/logo.png)
 
 [![Build Status](https://travis-ci.org/viest/php-ext-excel-export.svg?branch=master)](https://travis-ci.org/viest/php-ext-excel-export)
+[![Build status](https://ci.appveyor.com/api/projects/status/w4cfjo9e4gsrs6rn/branch/master?svg=true)](https://ci.appveyor.com/project/viest/php-ext-excel-export/branch/master)
 
 #### Why use xlswriter