Move python3 badge position

Author: phydev

README.md

@@ -2,8 +2,8 @@
 [![Maintainability](https://api.codeclimate.com/v1/badges/650cde37de8ccb468b8c/maintainability)](https://codeclimate.com/github/phydev/trajpy/maintainability)
 [![codecov](https://codecov.io/gh/ocbe-uio/trajpy/branch/master/graph/badge.svg?token=lhYwQjiAlU)](https://codecov.io/gh/ocbe-uio/trajpy)
 [![Build Status](https://travis-ci.com/ocbe-uio/trajpy.svg?branch=master)](https://travis-ci.com/ocbe-uio/trajpy)
-[![Python3](https://img.shields.io/badge/python-3.7+-blue.svg)](https://www.python.org/downloads/) 
 [![Documentation Status](https://readthedocs.org/projects/trajpy/badge/?version=latest)](https://trajpy.readthedocs.io/en/latest/?badge=latest)
+[![Python3](https://img.shields.io/badge/python-3.7+-blue.svg)](https://www.python.org/downloads/) 
 [![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)
 [![DOI](https://zenodo.org/badge/194252287.svg)](https://zenodo.org/badge/latestdoi/194252287)