Update README.md

Author: ncornette

README.md

@@ -1,9 +1,9 @@
 # OkCacheControl
 
-[![Codacy Badge](https://api.codacy.com/project/badge/Grade/b566a6e4564e4393b78b7b4b36a70452)](https://www.codacy.com/app/nicolas-cornette/OkCacheControl?utm_source=github.com&utm_medium=referral&utm_content=ncornette/OkCacheControl&utm_campaign=Badge_Grade)
 [![Build Status](https://travis-ci.org/ncornette/OkCacheControl.svg?branch=master)](https://travis-ci.org/ncornette/OkCacheControl)
-[![Bintray](https://img.shields.io/bintray/v/ncornette/maven/okcache-control.svg?maxAge=2592000)]()
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/b566a6e4564e4393b78b7b4b36a70452)](https://www.codacy.com/app/nicolas-cornette/OkCacheControl?utm_source=github.com&utm_medium=referral&utm_content=ncornette/OkCacheControl&utm_campaign=Badge_Grade)
 [![codecov](https://codecov.io/gh/ncornette/OkCacheControl/branch/master/graph/badge.svg)](https://codecov.io/gh/ncornette/OkCacheControl)
+[ ![Download](https://api.bintray.com/packages/ncornette/maven/okcache-control/images/download.svg) ](https://bintray.com/ncornette/maven/okcache-control/_latestVersion)
 
 Helper class to configure cache behaviour of OkHttp client, also works 
 with Retrofit for Android.