update doc

en/index.html

@@ -89,8 +89,8 @@
             
             
               <ul>
-<li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
 <li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
+<li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -200,8 +200,8 @@
 <span id="contents"></span><h2>Contents<a class="headerlink" href="#contents" title="Permalink to this headline">¶</a></h2>
 <div class="toctree-wrapper compound">
 <ul>
-<li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
 <li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
+<li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -280,7 +280,7 @@
   </script>
 <div class="github-fork-ribbon-wrapper right">
   <div class="github-fork-ribbon">
-    <a href="https://github.com/alibaba/arthas">Fork me at GitHub</a>
+    <a href="https://github.com/alibaba/arthas" target="_blank">Fork me at GitHub</a>
   </div>
 </div>