add logo

README.md

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+# zen4R <a href="https://github.com/eblondel/zen4R"><img src='https://github.com/eblondel/zen4R/blob/master/inst/extdata/resources/zen4R.png?raw=true' align="right" height="139" /></a>
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 [![Build Status](https://github.com/eblondel/zen4R/actions/workflows/r-cmd-check.yml/badge.svg?branch=master)](https://github.com/eblondel/zen4R/actions/workflows/r-cmd-check.yml)
 [![CRAN_Status_Badge](https://www.r-pkg.org/badges/version/zen4R)](https://cran.r-project.org/package=zen4R)
 [![Github_Status_Badge](https://img.shields.io/badge/Github-0.10.1-blue.svg)](https://github.com/eblondel/zen4R)
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.2547036.svg)](https://doi.org/10.5281/zenodo.2547036)
 
-**zen4R – R Interface to Zenodo REST API**
+**R Interface to Zenodo REST API**
 
 ``zen4R`` provides an interface to the [Zenodo e-infrastructure](https://zenodo.org) API.