update doc

README.md

@@ -39,10 +39,10 @@ XXL-JOB 是一个开源且免费项目，其正在进行的开发完全得益于
 
 <div>
     <a href="https://www.mingdao.com?s=utm_208&utm_source=XXL-JOB&utm_campaign=github&utm_content=%E6%B3%A8%E5%86%8C%E4%BD%93%E9%AA%8C" title="mingdao" target="_blank" >
-        <img style="border:1px solid #dfe2e5;height:55px;vertical-align: middle;" src="https://www.xuxueli.com/page/static/images/logo_mingdaoyun.png" >
+        <img width="240px" src="https://www.xuxueli.com/page/static/images/logo_mingdaoyun.png" >
     </a>
     <a href="https://www.jetbrains.com/idea/" title="jetbrains" target="_blank" >
-        <img style="border:1px solid #dfe2e5;height:55px;vertical-align: middle;" src="https://www.xuxueli.com/page/static/images/logo_intellij.jpeg" >
+        <img width="55px" src="https://www.xuxueli.com/page/static/images/logo_intellij.jpeg" >
     </a>
 </div>