Update README

README.md

@@ -1,14 +1,25 @@
-# Saladict
+<p align="center">
+  <a href="https://chrome.google.com/webstore/detail/%E6%B2%99%E6%8B%89%E6%9F%A5%E8%AF%8D/cdonnmffkdaoajfknoeeecmchibpmkmg" target="_blank"><img src="saladict.jpg" /></a>
+</p>
 
-[![Release Status](https://img.shields.io/github/release/Crimx/crx-saladict.svg)](https://github.com/Crimx/crx-saladict/releases) 
-[![Build Status](https://travis-ci.org/Crimx/crx-saladict.svg?branch=dev)](https://travis-ci.org/Crimx/crx-saladict?branch=dev) 
-[![Coverage Status](https://coveralls.io/repos/Crimx/crx-saladict/badge.svg?branch=dev&service=github)](https://coveralls.io/github/Crimx/crx-saladict?branch=dev) 
-[![Dependencies Status](https://david-dm.org/Crimx/crx-saladict.svg)](https://github.com/Crimx/crx-saladict) 
-[![devDependencies Status](https://img.shields.io/david/dev/Crimx/crx-saladict.svg)](https://github.com/Crimx/crx-saladict) 
+<p align="center">
+  <a href="https://github.com/Crimx/crx-saladict/releases"><img src="https://img.shields.io/github/release/Crimx/crx-saladict.svg" alt="Release Status" style="max-width:100%;"></a>
+  <a href="https://travis-ci.org/Crimx/crx-saladict?branch=dev"><img src="https://travis-ci.org/Crimx/crx-saladict.svg?branch=dev" alt="Build Status" style="max-width:100%;"></a>
+  <a href="https://coveralls.io/github/Crimx/crx-saladict?branch=dev"><img src="https://coveralls.io/repos/Crimx/crx-saladict/badge.svg?branch=dev&service=github" alt="Coverage Status" style="max-width:100%;"></a>
+  <a href="https://github.com/Crimx/crx-saladict"><img src="https://david-dm.org/Crimx/crx-saladict.svg" style="max-width:100%;" alt="Dependencies Status"></a>
+  <a href="https://github.com/Crimx/crx-saladict"><img src="https://img.shields.io/david/dev/Crimx/crx-saladict.svg" alt="devDependencies Status" style="max-width:100%;"></a>
+</p>
 
+<h1 align="center">Saladict</h1>
 
-Chrome extension, inline translator powered by mutiple online dictionaries
+<p align="center">Chrome extension, inline translator powered by mutiple online dictionaries.</p>
 
-------
+<br>
 
-In Development
+<p align="center">
+  <a href="https://chrome.google.com/webstore/detail/%E6%B2%99%E6%8B%89%E6%9F%A5%E8%AF%8D/cdonnmffkdaoajfknoeeecmchibpmkmg" target="_blank">Chrome Web Store</a>
+</p>
+
+<p align="center">
+  <a href="https://github.com/Crimx/crx-saladict/releases/download/4.0.0/saladict.crx" target="_blank">直接下载安装包</a>
+</p>