Add Arabic flag and fixed display problem of the language list in router console

installer/resources/readme/readme_zh.html

@@ -1,15 +1,15 @@
 <div lang="zh">
-<div align="right"> 
-  <div class="langbox" align="right"><a href="/index.jsp?lang=en"><img src="/flags.jsp?c=us" title="English" alt="English"></a> 
+
+  <div class="langbox" ><a href="/index.jsp?lang=en"><img src="/flags.jsp?c=us" title="English" alt="English"></a> 
     <a href="/index.jsp?lang=zh"><img src="/flags.jsp?c=cn" title="中文" alt="中文"></a> 
+    <a href="/?lang=ar"><img src="/flags.jsp?c=ps" title="Arabic" alt="Arabic"></a></div>
     <a href="/index.jsp?lang=de"><img src="/flags.jsp?c=de" title="Deutsch" alt="Deutsch"></a> 
     <a href="/index.jsp?lang=fr"><img src="/flags.jsp?c=fr" title="Fran&ccedil;ais" alt="Fran&ccedil;ais"></a> 
     <a href="/index.jsp?lang=es"><img src="/flags.jsp?c=es" title="Espa&ntilde;ol" alt="Espa&ntilde;ol"></a> 
     <a href="/index.jsp?lang=nl"><img src="/flags.jsp?c=nl" title="Nederlands" alt="Nederlands"></a> 
     <a href="/index.jsp?lang=ru"><img src="/flags.jsp?c=ru" title="Русский" alt="Русский"></a> 
     <a href="/index.jsp?lang=sv"><img src="/flags.jsp?c=se" title="Svenska" alt="Svenska"></a></div>
-    <a href="/?lang=ar"><img src="/flags.jsp?c=sa" title="العربية" alt="العربية"></a></div>
-</div></div>
+</div>
 <div class="welcome"><h2>欢迎使用 I2P!</h2></div>
 <p>I2P 运行后的几分钟里控制台左侧的【活动节点】数量会逐渐增加，
 <b>在【本地目标】中出现【共享客户端】后，表示I2P已建立连接</b>(没有出现？见 <a href="#trouble">疑难解答</a>)。