badge: Remove codacy coverage badge (#144)

Signed-off-by: Ce Gao <[email protected]>

Author: gaocegege

readme.md

@@ -5,24 +5,13 @@
 
 <h4 align="center">Processing.R allows the users to write Processing sketches in R.</h4>
 
-<!--[![Build Status](https://travis-ci.org/gaocegege/Processing.R.svg?branch=master)](https://travis-ci.org/gaocegege/Processing.R)
-[![](https://img.shields.io/badge/docker-supported-blue.svg)](https://quay.io/repository/gaocegege/processing.r)
-[![Docker Repository on Quay](https://quay.io/repository/gaocegege/processing.r/status "Docker Repository on Quay")](https://quay.io/repository/gaocegege/processing.r)
-[![Codacy Badge](https://api.codacy.com/project/badge/Grade/33ebc49f6f764fffb7ea7bf617edf902)](https://www.codacy.com/app/gaocegege/Processing-R?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=gaocegege/Processing.R&amp;utm_campaign=Badge_Grade)
-[![Github All Releases](https://img.shields.io/github/downloads/gaocegege/Processing.R/total.svg)](https://github.com/gaocegege/Processing.R/releases)
-[![Gitter](https://badges.gitter.im/gaocegege/Processing.R.svg)](https://gitter.im/gaocegege/Processing.R?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
-[![Build status](https://ci.appveyor.com/api/projects/status/9lq6psaw9c18ins8/branch/master?svg=true)](https://ci.appveyor.com/project/gaocegege/processing-r/branch/master)
-[![GitHub release](https://img.shields.io/github/release/gaocegege/Processing.R.svg)](https://github.com/gaocegege/Processing.R/releases)
-[![Codacy Badge](https://api.codacy.com/project/badge/Coverage/33ebc49f6f764fffb7ea7bf617edf902)](https://www.codacy.com/app/gaocegege/Processing-R?utm_source=github.com&utm_medium=referral&utm_content=gaocegege/Processing.R&utm_campaign=Badge_Coverage)
--->
-
 <p align="center">
     <a href="https://travis-ci.org/gaocegege/Processing.R"><img src="https://travis-ci.org/gaocegege/Processing.R.svg?branch=master" alt="Travis CI"></a>
     <a href="https://ci.appveyor.com/project/gaocegege/processing-r/branch/master"><img src="https://ci.appveyor.com/api/projects/status/9lq6psaw9c18ins8/branch/master?svg=true" alt="appveyor"></a>
     <a href="https://quay.io/repository/gaocegege/processing.r"><img src="https://img.shields.io/badge/docker-supported-blue.svg" alt=""></a>
     <a href="https://quay.io/repository/gaocegege/processing.r"><img src="https://quay.io/repository/gaocegege/processing.r/status" alt="Docker Repository on Quay" title="Docker Repository on Quay"></a>
     <a href="https://www.codacy.com/app/gaocegege/Processing-R?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=gaocegege/Processing.R&amp;utm_campaign=Badge_Grade"><img src="https://api.codacy.com/project/badge/Grade/33ebc49f6f764fffb7ea7bf617edf902" alt="Codacy Badge"></a>
-    <a href="https://www.codacy.com/app/gaocegege/Processing-R?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=gaocegege/Processing.R&amp;utm_campaign=Badge_Coverage"><img src="https://api.codacy.com/project/badge/Coverage/33ebc49f6f764fffb7ea7bf617edf902" alt="Codacy Badge"></a>
+    <!--<a href="https://www.codacy.com/app/gaocegege/Processing-R?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=gaocegege/Processing.R&amp;utm_campaign=Badge_Coverage"><img src="https://api.codacy.com/project/badge/Coverage/33ebc49f6f764fffb7ea7bf617edf902" alt="Codacy Badge"></a>-->
     <a href="https://github.com/gaocegege/Processing.R/releases"><img src="https://img.shields.io/github/downloads/gaocegege/Processing.R/total.svg" alt="GitHub Download"></a>
     <a href="https://github.com/gaocegege/Processing.R/releases"><img src="https://img.shields.io/github/release/gaocegege/Processing.R.svg" alt="GitHub Release"></a>
     <a href="https://gitter.im/gaocegege/Processing.R?utm_source=badge&amp;utm_medium=badge&amp;utm_campaign=pr-badge"><img src="https://badges.gitter.im/gaocegege/Processing.R.svg" alt="Gitter"></a>