pencil: minor adjustment on the test coverage badge
pyecharts is a library to generate charts using Echarts. It simply provides the interface between Echarts and Python.
-[![Build Status](https://travis-ci.org/chenjiandongx/pyecharts.svg?branch=master)](https://travis-ci.org/chenjiandongx/pyecharts)
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-[![codecov](https://codecov.io/gh/pyexcel/pyecharts/branch/master/graph/badge.svg)](https://codecov.io/gh/pyexcel/pyecharts)
+[![Build Status](https://travis-ci.org/chenjiandongx/pyecharts.svg?branch=master)](https://travis-ci.org/chenjiandongx/pyecharts) [![codecov](https://codecov.io/gh/pyexcel/pyecharts/branch/master/graph/badge.svg)](https://codecov.io/gh/pyexcel/pyecharts)
## Introduction
[Echarts](https://github.com/ecomfe/echarts) is an open source library from Baidu for data visualization in javascript. It has awesome demo pages so I started to look out for an interface library so that I could use it in Python. I ended up with [echarts-python](https://github.com/yufeiminds/echarts-python) on github but it lacks of documentation and was not updated for a while. Just like many other Python projects, I started my own project, pyecharts, referencing echarts-python and another library [pygal](https://github.com/Kozea/pygal).
