Add badge

README.md

 # MGPro
 [![pipeline status](https://git.nju.edu.cn/geophy/MGPro/badges/master/pipeline.svg)](https://git.nju.edu.cn/xumi1993/mgpro/commits/master)
+![PyPI](https://img.shields.io/pypi/v/mgpro)
 
 MGPro is a Python Interactive command line toolbox for processing geomagnetic and gravity data
 

setup.py

@@ -5,7 +5,7 @@ packages = find_packages()
 with open("README.md", "r") as fh:
     long_description = fh.read()
 
-VERSION = "0.1.12"
+VERSION = "0.1.13"
 setup(name='mgpro',
       version=VERSION,
       author='Mijian Xu',