Update README.md

update zenodo badge to point to the latest released

README.md

@@ -1,8 +1,7 @@
-
 [![Build Status](https://travis-ci.org/NBISweden/AGAT.svg?branch=master)](https://travis-ci.org/NBISweden/AGAT)
 [![Coverage Status](https://coveralls.io/repos/github/NBISweden/AGAT/badge.svg?branch=coveralls)](https://coveralls.io/github/NBISweden/AGAT?branch=coveralls)
 [![install with bioconda](https://img.shields.io/badge/install%20with-bioconda-brightgreen.svg?style=flat)](http://bioconda.github.io/recipes/agat/README.html)
-[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.3549547.svg)](https://doi.org/10.5281/zenodo.3549547)  
+[![DOI](https://zenodo.org/badge/222659741.svg)](https://zenodo.org/badge/latestdoi/222659741)  
 AGAT 
 =========================================
 <h2><em>A</em>nother <em>G</em>ff <em>A</em>nalysis <i>T</i>oolkit (AGAT)</h2>