diff --git a/en/_posts/index.xml b/en/_posts/index.xml
index 908447a..e8a298b 100644
--- a/en/_posts/index.xml
+++ b/en/_posts/index.xml
@@ -13,7 +13,7 @@
       
       <guid>/en/html5/</guid>
       <description>This page is for uweb browser.
-Html5 applications Click to install the following html5 apps:
+Click to install the following html5 apps:
 Huge markdown file viewer
 Huge markdeep file viewer (markdown, latex, diagram,graphviz etc.)
 plyr video player
@@ -35,7 +35,7 @@ All html5 applications locating in a subfolder whose name begins with &amp;quot;
       <description>Commands are the best for repeated execution of an instruction. Address bar command modes provide ways to run different commands in the same category easily.
 The configure file &amp;quot;default.acmd&amp;quot; has the exactly same format as default.cmds. Click the following links to install new modes (cold start the app to take effect, then long click the &amp;quot;refresh&amp;quot; botton to switch modes):
 Shell command mode
-&amp;lt;a href=&amp;quot;i:0gdefault.acmd::bc:text/plain:echo &amp;quot;%25s&amp;quot;|bc -l -q%0A&amp;quot;&amp;gt;GNU bc (basic calculator) command mode (need termux for Android 10- )</description>
+GNU bc (basic calculator) command mode (need termux for Android 10- )</description>
     </item>
     
     <item>
diff --git a/en/acmd/index.html b/en/acmd/index.html
index 9bafa10..7e7d66e 100644
--- a/en/acmd/index.html
+++ b/en/acmd/index.html
@@ -46,7 +46,7 @@
   <p><a href="../cmds/index.html">Commands</a> are the best for repeated execution of an instruction. Address bar command modes provide ways to run different commands in the same category easily.</p>
 <p>The configure file &quot;default.acmd&quot; has the exactly same format as <a href="../cmds/index.html">default.cmds</a>. Click the following links to install new modes (cold start the app to take effect, then long click the &quot;refresh&quot; botton to switch modes):</p>
 <p><a href="i:0gdefault.acmd::shell:text/plain:%25s%0A">Shell command mode</a></p>
-<p>&lt;a href=&quot;i:0gdefault.acmd::bc:text/plain:echo &quot;%25s&quot;|bc -l -q%0A&quot;&gt;GNU bc (basic calculator) command mode (need termux for Android 10- )</a></p>
+<p><a href="i:0gdefault.acmd::bc:text/plain:echo '%25s'|bc -l -q%0A">GNU bc (basic calculator) command mode (need termux for Android 10- )</a></p>
 <p><a href="i:0gdefault.acmd::plot 2D function:image/svg%2Bxml:gnuplot -e 'set term svg;set
 output;plot %25s'%0A">GNUPlot plot (2D function), needs uweb adapted termux &amp; gnuplot</a></p>
 <p><a href="i:0gdefault.acmd::plot 3D function:image/svg%2Bxml:gnuplot -e 'set term svg;set
@@ -54,7 +54,7 @@ output;splot %25s'%0A">GNUPlot plot (3D function), needs uweb adapted termux &am
 <h4 id="shell-command-mode">Shell command mode</h4>
 <p>Click the following links to make commands appear in address bar, then press &quot;enter&quot; to execute:<br>
 <a href="i:15cd;toybox mkdir -p /sdcard/Download/app;toybox ln -s /sdcard/Download/app">symbolic link &quot;app&quot; folder to be under the &quot;Download&quot; folder</a></p>
-<p><a href="i:15cd;cd ../..;toybox cp -r files /sdcard/Download/uweb;toybox rm -rf files;toybox ln -s /sdcard/Download/uweb files">symbolic link configuration folder to &quot;/sdcard/Download/uwweb&quot;</a></p>
+<p><a href="i:15cd;cd ../..;toybox cp -r files /sdcard/Download/uweb;toybox rm -rf files;toybox ln -s /sdcard/Download/uweb files">symbolic link configuration folder to &quot;/sdcard/Download/uweb&quot;</a></p>
 
 </div>
 
diff --git a/en/html5/index.html b/en/html5/index.html
index 3a8316c..1fafd5e 100644
--- a/en/html5/index.html
+++ b/en/html5/index.html
@@ -47,9 +47,8 @@
   <ul class="tags">
     
   </ul>
-  <p>This page is for <a href="../index.html">uweb browser</a>.</p>
-<h4 id="html5-applications">Html5 applications</h4>
-<p>Click to install the following html5 apps:<br>
+  <p>This page is for <a href="../index.html">uweb browser</a>.<br>
+Click to install the following html5 apps:<br>
 <a target="_self" href="i:0happ/txtview.html:../../zh/searchurl/txt/txtview.html">Huge markdown file viewer</a><br>
 <a target="_self" href="i:0happ/markdeep.html:../../zh/searchurl/txt/markdeep.html">Huge markdeep file viewer (markdown, latex, diagram,graphviz etc.)</a><br>
 <a target="_self" href="i:0happ/plyr.html:../../zh/searchurl/txt/plyr.cfg">plyr video player</a><br>
@@ -89,8 +88,9 @@
 <li>Press &quot;enter&quot; on the address bar to execute the command.</li>
 </ul>
 <h4 id="mdict-dictionary-lookup-search-engine">mdict dictionary lookup search engine:</h4>
-<p>i:5ihttps://uwebzh.netlify.app/zh/searchurl/txt/mdict.html?file=./mdict/xxx.mdx,./mdict/xxx.mdd#word=%s</p>
+<p>i:5ihttps://uwebzh.netlify.app/zh/searchurl/txt/mdict.html?file=mdict/xxx.mdx,mdict/xxx.mdd#word=%s</p>
 <p>The dictionary files (mdx, mdd) must locate in the &quot;app&quot; subfolder under the configuration folder. In above example, the files &quot;xxx.mdx&quot; and &quot;xxx.mdd&quot; locate in the folder &quot;.../app/mdict&quot;.</p>
+<p>To make life easier, users can <a href="../acmd/index.html">link the &quot;app&quot; subfolder</a> to any public accessible folder.</p>
 <p><a href="i:15d:text/plain:cd /data/data/info.torapp.uweb/files/app/mdict;for i in *.mdx; do b=`basename ${i} .mdx`;fs=%22./mdict/${i}%22;if [ -f ${b}.mdd ];then fs=${fs}%22,./mdict/${b}.mdd%22;fi;echo ${b}:i:5ihttps://uwebzh.netlify.app/zh/searchurl/txt/mdict.html?file=${fs}#word=%25s >>../../home5.search;done:">Clip to paste commands to the address bar</a>, the commands scan mdx/mdd files under app/mdict and add search engines to home screen.</p>
 <p>After pasting the command to the address bar, press home screen button, then press &quot;enter&quot; on the address bar to execute the command.</p>
 
diff --git a/en/index.xml b/en/index.xml
index 12ad850..a53f1a2 100644
--- a/en/index.xml
+++ b/en/index.xml
@@ -13,7 +13,7 @@
       
       <guid>/en/html5/</guid>
       <description>This page is for uweb browser.
-Html5 applications Click to install the following html5 apps:
+Click to install the following html5 apps:
 Huge markdown file viewer
 Huge markdeep file viewer (markdown, latex, diagram,graphviz etc.)
 plyr video player
@@ -35,7 +35,7 @@ All html5 applications locating in a subfolder whose name begins with &amp;quot;
       <description>Commands are the best for repeated execution of an instruction. Address bar command modes provide ways to run different commands in the same category easily.
 The configure file &amp;quot;default.acmd&amp;quot; has the exactly same format as default.cmds. Click the following links to install new modes (cold start the app to take effect, then long click the &amp;quot;refresh&amp;quot; botton to switch modes):
 Shell command mode
-&amp;lt;a href=&amp;quot;i:0gdefault.acmd::bc:text/plain:echo &amp;quot;%25s&amp;quot;|bc -l -q%0A&amp;quot;&amp;gt;GNU bc (basic calculator) command mode (need termux for Android 10- )</description>
+GNU bc (basic calculator) command mode (need termux for Android 10- )</description>
     </item>
     
     <item>
diff --git a/index.html b/index.html
index f9c0bee..33185bf 100644
--- a/index.html
+++ b/index.html
@@ -1 +1,10 @@
-<meta http-equiv="refresh" content="0; url=zh/index.html">
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <title>en/</title>
+    <link rel="canonical" href="en/">
+    <meta name="robots" content="noindex">
+    <meta charset="utf-8">
+    <meta http-equiv="refresh" content="0; url=en/">
+  </head>
+</html>
diff --git a/zh/_posts/index.xml b/zh/_posts/index.xml
index 3b86d95..c38eb4c 100644
--- a/zh/_posts/index.xml
+++ b/zh/_posts/index.xml
@@ -13,8 +13,8 @@
       
       <guid>/zh/html5/</guid>
       <description>mdict字典搜索引擎:
-i:5ihttps://uwebzh.netlify.app/zh/searchurl/txt/mdict.html?file=mdict/xxx.mdx,mdict/xxx.mdd#word=
-字典文件必须位于配置目录应用子目录&amp;quot;app&amp;quot;下。上述字典搜索引擎例子中文件&amp;quot;xxx.mdx&amp;quot;及&amp;quot;xxx.mdd&amp;quot;位于&amp;quot;.../app/mdict&amp;quot;下。
+i:5ihttps://uwebzh.netlify.app/zh/searchurl/txt/mdict.html?file=mdict/xxx.mdx,mdict/xxx.mdd#word=%s
+字典文件必须位于配置目录应用子目录&amp;quot;app&amp;quot;下。上述字典搜索引擎例子中文件&amp;quot;xxx.mdx&amp;quot;及&amp;quot;xxx.mdd&amp;quot;位于&amp;quot;.../app/mdict&amp;quot;下。为方便文件操作，用户可符号链接&amp;quot;app&amp;quot;至任意公共目录。
 点击安装超大文件阅读器（支持txt, html, markdown）
 点击安装超大文件阅读器（markdeep版, latex, diagram,graphviz等）
 点击安装plyr视频播放器
diff --git a/zh/html5/index.html b/zh/html5/index.html
index bf75f95..49965c8 100644
--- a/zh/html5/index.html
+++ b/zh/html5/index.html
@@ -48,8 +48,8 @@
     
   </ul>
   <p>mdict字典搜索引擎:<br>
-i:5ihttps://uwebzh.netlify.app/zh/searchurl/txt/mdict.html?file=mdict/xxx.mdx,mdict/xxx.mdd#word=</p>
-<p>字典文件必须位于配置目录应用子目录&quot;app&quot;下。上述字典搜索引擎例子中文件&quot;xxx.mdx&quot;及&quot;xxx.mdd&quot;位于&quot;.../app/mdict&quot;下。</p>
+i:5ihttps://uwebzh.netlify.app/zh/searchurl/txt/mdict.html?file=mdict/xxx.mdx,mdict/xxx.mdd#word=%s</p>
+<p>字典文件必须位于配置目录应用子目录&quot;app&quot;下。上述字典搜索引擎例子中文件&quot;xxx.mdx&quot;及&quot;xxx.mdd&quot;位于&quot;.../app/mdict&quot;下。为方便文件操作，用户可<a href="../../en/acmd/index.html">符号链接&quot;app&quot;至任意公共目录</a>。</p>
 <p><a target="_self" href="i:0happ/txtview.html:../searchurl/txt/txtview.html">点击安装超大文件阅读器（支持txt, html, markdown）</a><br>
 <a target="_self" href="i:0happ/markdeep.html:../searchurl/txt/markdeep.html">点击安装超大文件阅读器（markdeep版, latex, diagram,graphviz等）</a><br>
 <a target="_self" href="i:0happ/plyr.html:../searchurl/txt/plyr.cfg">点击安装plyr视频播放器</a><br>
diff --git a/zh/index.xml b/zh/index.xml
index 2913df0..ebbc99a 100644
--- a/zh/index.xml
+++ b/zh/index.xml
@@ -88,8 +88,8 @@ novip:https://www.novipnoad.com/s=
       
       <guid>/zh/html5/</guid>
       <description>mdict字典搜索引擎:
-i:5ihttps://uwebzh.netlify.app/zh/searchurl/txt/mdict.html?file=mdict/xxx.mdx,mdict/xxx.mdd#word=
-字典文件必须位于配置目录应用子目录&amp;quot;app&amp;quot;下。上述字典搜索引擎例子中文件&amp;quot;xxx.mdx&amp;quot;及&amp;quot;xxx.mdd&amp;quot;位于&amp;quot;.../app/mdict&amp;quot;下。
+i:5ihttps://uwebzh.netlify.app/zh/searchurl/txt/mdict.html?file=mdict/xxx.mdx,mdict/xxx.mdd#word=%s
+字典文件必须位于配置目录应用子目录&amp;quot;app&amp;quot;下。上述字典搜索引擎例子中文件&amp;quot;xxx.mdx&amp;quot;及&amp;quot;xxx.mdd&amp;quot;位于&amp;quot;.../app/mdict&amp;quot;下。为方便文件操作，用户可符号链接&amp;quot;app&amp;quot;至任意公共目录。
 点击安装超大文件阅读器（支持txt, html, markdown）
 点击安装超大文件阅读器（markdeep版, latex, diagram,graphviz等）
 点击安装plyr视频播放器
diff --git a/zh/searchurl/txt/cmds.cfg b/zh/searchurl/txt/cmds.cfg
index f8c4710..7ea3d4c 100644
--- a/zh/searchurl/txt/cmds.cfg
+++ b/zh/searchurl/txt/cmds.cfg
@@ -1,6 +1,6 @@
 打开剪贴板链接:clip/uweb:/system/bin/toybox grep -m1 -Eo '(http|https)://[^ "'\'']+'
 行编辑器:text/html:cat %f|while read LINE; do echo "<a href=\"i:AA${LINE//\"/%22}\">$LINE</a><br>";done
-代码编辑器:text/html:printf "<style>#div{position:fixed;top:2px}#editor{position: absolute;top:30;right:0;bottom:0;left:0;}#textarea{display:none}</style><script src='http://cdn.bootcss.com/ace/1.4.9/ace.js'></script><script src='http://cdn.bootcss.com/ace/1.4.9/ext-language_tools.js'></script><script src='https://fastly.jsdelivr.net/gh/torappinfo/uweb/searchurl/ace.js'></script><div id='div'><button onclick='onSave(\"%f\")'>Save</button> <a href=''>Run</a></div><pre id='editor'></pre><textarea id='textarea'>";cat "%f";
+代码编辑器:text/html:printf "<style>#div{position:fixed;top:2px}#editor{position: absolute;top:30;right:0;bottom:0;left:0;}#textarea{display:none}</style><script src='http://cdn.bootcss.com/ace/1.4.9/ace.js'></script><script src='http://cdn.bootcss.com/ace/1.4.9/ext-language_tools.js'></script><script src='https://fastly.jsdelivr.net/gh/torappinfo/uweb/zh/searchurl/ace.js'></script><div id='div'><button onclick='onSave(\"%f\")'>Save</button> <a href=''>Run</a></div><pre id='editor'></pre><textarea id='textarea'>";cat "%f";
 淘宝比价:clip/uweb:grep -m1 -Eo '(http|https)://[^ "'\'']+'|curl -s "`cat`"|grep -m1 -Eo '(http|https)://[^ ?]+'|grep -Eo '[0-9]+'|echo "http://tool.manmanbuy.com/historyLowest.aspx?url=https://detail.tmall.com/item.htm?id=`cat`"
 markdeep:text/html:cat %f;echo "<style class=fallback>body{visibility:hidden;white-space:pre;font-family:monospace}</style><script src=https://casual-effects.com/markdeep/latest/markdeep.min.js charset=utf-8></script><script>window.alreadyProcessedMarkdeep||(document.body.style.visibility=visible)</script>"
 显示本地md:text/html:echo "<script src=https://fastly.jsdelivr.net/npm/mdme></script><textarea>";cat %f