doc: Update README.

Author: liqiang-fit2cloud

README.md

@@ -2,11 +2,11 @@
 
 # ![](https://raw.githubusercontent.com/KubeOperator/webkubectl/master/gotty/resources/favicon.png) Web Kubectl - Run kubectl command in web browser
 
+[![Downloads](https://img.shields.io/docker/pulls/kubeoperator/webkubectl?label=downloads&style=plastic)](https://hub.docker.com/r/kubeoperator/webkubectl)
 [![Go Report Card](https://goreportcard.com/badge/github.com/kubeoperator/webkubectl)](https://goreportcard.com/report/github.com/kubeoperator/webkubectl)
 ![License](https://img.shields.io/github/license/KubeOperator/webkubectl)
 ![Dockerized](https://img.shields.io/badge/dockerized-yes-brightgreen)
 ![Version](https://img.shields.io/github/v/release/kubeoperator/webkubectl)
-[![Downloads](https://img.shields.io/docker/pulls/kubeoperator/webkubectl.svg)](https://hub.docker.com/r/kubeoperator/webkubectl)
 ![Visitors](https://page-views.glitch.me/badge?page_id=kubeoperator.webkubectl)
 
 ![webkubectl](https://raw.githubusercontent.com/KubeOperator/webkubectl/master/web-resources/webkubectl.gif)

README.zh_CN.md

@@ -2,11 +2,11 @@
 
 # ![](https://raw.githubusercontent.com/KubeOperator/webkubectl/master/gotty/resources/favicon.png) Web Kubectl - 在Web浏览器中运行kubectl命令
 
+[![Downloads](https://img.shields.io/docker/pulls/kubeoperator/webkubectl?label=downloads&style=plastic)](https://hub.docker.com/r/kubeoperator/webkubectl)
 [![Go Report Card](https://goreportcard.com/badge/github.com/kubeoperator/webkubectl)](https://goreportcard.com/report/github.com/kubeoperator/webkubectl)
 ![License](https://img.shields.io/github/license/KubeOperator/webkubectl)
 ![Dockerized](https://img.shields.io/badge/dockerized-yes-brightgreen)
 ![Version](https://img.shields.io/github/v/release/kubeoperator/webkubectl)
-[![Downloads](https://img.shields.io/docker/pulls/kubeoperator/webkubectl.svg)](https://hub.docker.com/r/kubeoperator/webkubectl)
 ![Visitors](https://page-views.glitch.me/badge?page_id=kubeoperator.webkubectl)
 
 ![webkubectl](https://raw.githubusercontent.com/KubeOperator/webkubectl/master/web-resources/webkubectl.gif)