Versionning README.md

Version release with DOI from data archiving tool Zenodo

Author: 0m1n0

README.md

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-# StratiPy <img src="https://img.shields.io/badge/version-0.7.0-blue.svg"> <a href="https://travis-ci.org/GHFC/StratiPy"><img src="https://travis-ci.org/GHFC/StratiPy.svg?branch=master"></a> [![License](https://img.shields.io/badge/license-BSD%203--Clause-orange.svg)](https://opensource.org/licenses/BSD-3-Clause) <a href="https://doi.org/10.5281/zenodo.1042546"><img src="https://img.shields.io/badge/DOI-10.5281%2Fzenodo.1042546-lightgrey.svg"></a>
+# StratiPy <img src="https://img.shields.io/badge/version-0.8.0-blue.svg"> <a href="https://travis-ci.org/GHFC/StratiPy"><img src="https://travis-ci.org/GHFC/StratiPy.svg?branch=master"></a> [![License](https://img.shields.io/badge/license-BSD%203--Clause-orange.svg)](https://opensource.org/licenses/BSD-3-Clause) <a href="https://zenodo.org/badge/latestdoi/53434086"><img src="https://zenodo.org/badge/53434086.svg" alt="DOI"></a>
 Patients stratification with Graph-regularized Non-negative Matrix Factorization (GNMF) in Python.
 
 ## Dependencies