added download link

Author: jakubnabrdalik

README.md

@@ -1,6 +1,7 @@
 This is the excel-export Grails plugin using Apache POI
 
-[![Build Status](https://travis-ci.org/TouK/excel-export.svg?branch=master)](https://travis-ci.org/TouK/excel-export) 
+[![Build Status](https://travis-ci.org/TouK/excel-export.svg?branch=master)](https://travis-ci.org/TouK/excel-export) [ ![Download](https://api.bintray.com/packages/jakubnabrdalik/plugins/jakubnabrdalik.plugins:excel-export/images/download.svg) ](https://bintray.com/jakubnabrdalik/plugins/jakubnabrdalik.plugins:excel-export/_latestVersion)
+
 
 #What does it do?