Add: add python version bdage
<a href="https://badge.fury.io/py/pyecharts">
<img src="https://badge.fury.io/py/pyecharts.svg" alt="Package version">
</a>
+ <a href="https://pypi.org/project/pyecharts/">
+ <img src="https://img.shields.io/pypi/pyversions/pyecharts.svg?colorB=brightgreen" alt="PyPI - Python Version">
+ </a>
+</p>
+<p align="center">
<a href="https://github.com/pyecharts/pyecharts/pulls">
<img src="https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat" alt="Contributions welcome">
</a>
<a href="https://opensource.org/licenses/MIT">
- <img src="https://img.shields.io/badge/License-MIT-green.svg" alt="License">
+ <img src="https://img.shields.io/badge/License-MIT-brightgreen.svg" alt="License">
</a>
</p>
