add plugin list page (#41)

* add plugin list page

* 根据反馈进行调整

* add Code Coverage API Plugin

content/about/plugins.md

@@ -0,0 +1,17 @@
+---
+title: "插件列表"
+description: "Jenkins 中文社区维护的插件"
+date: 2019-05-15T20:30:05+08:00
+draft: false
+---
+
+下面的列表是由 Jenkins 中文社区的成员维护的插件：
+
+| 插件 | GitHub 仓库 | 版本 | 安装量 | 主要维护者 |
+|----|----|----|----|----|
+| Simplified Chinese Plugin | [jenkinsci/localization-zh-cn-plugin](https://github.com/jenkinsci/localization-zh-cn-plugin) | [![Jenkins Plugin](https://img.shields.io/jenkins/plugin/v/localization-zh-cn.svg)](https://plugins.jenkins.io/localization-zh-cn) | [![Jenkins Plugin Installs](https://img.shields.io/jenkins/plugin/i/localization-zh-cn.svg?color=blue)](https://plugins.jenkins.io/localization-zh-cn) | {{< ghref "LinuxSuRen" "LinuxSuRen" >}} |
+| Hugo Plugin | [jenkinsci/hugo-plugin](https://github.com/jenkinsci/hugo-plugin) | [![Jenkins Plugin](https://img.shields.io/jenkins/plugin/v/hugo.svg)](https://plugins.jenkins.io/hugo) | [![Jenkins Plugin Installs](https://img.shields.io/jenkins/plugin/i/hugo.svg?color=blue)](https://plugins.jenkins.io/hugo) | {{< ghref "LinuxSuRen" "LinuxSuRen" >}} |
+| Maven SNAPSHOT Check Plugin | [jenkinsci/maven-snapshot-check-plugin](https://github.com/jenkinsci/maven-snapshot-check-plugin) | [![Jenkins Plugin](https://img.shields.io/jenkins/plugin/v/maven-snapshot-check.svg)](https://plugins.jenkins.io/maven-snapshot-check) | [![Jenkins Plugin Installs](https://img.shields.io/jenkins/plugin/i/maven-snapshot-check.svg?color=blue)](https://plugins.jenkins.io/maven-snapshot-check) | {{< ghref "donhui" "donhui" >}} |
+| Code Coverage API Plugin | [jenkinsci/code-coverage-api-plugin](https://github.com/jenkinsci/code-coverage-api-plugin) | [![Jenkins Plugin](https://img.shields.io/jenkins/plugin/v/code-coverage-api.svg)](https://plugins.jenkins.io/code-coverage-api) | [![Jenkins Plugin Installs](https://img.shields.io/jenkins/plugin/i/code-coverage-api.svg?color=blue)](https://plugins.jenkins.io/code-coverage-api) | {{< ghref "cizezsy" "cizezsy" >}} |
+
+同时也期待有更多的贡献者增砖添瓦。