update doc

en/getstatic.html

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   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>getstatic &mdash; Arthas 3.2.0 documentation</title>
+  <title>getstatic &mdash; Arthas 3.3.2 documentation</title>
   
 
   
@@ -67,7 +67,7 @@
             
             
               <div class="version">
-                3.2.0
+                3.3.2
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@@ -143,6 +143,7 @@
 <li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas">Fork me at GitHub</a></li>
 <li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md#">Compile and debug/CONTRIBUTING</a></li>
 <li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/releases">Release Notes</a></li>
+<li class="toctree-l1"><a class="reference internal" href="contact-us.html">Contact us</a></li>
 </ul>
 
             
@@ -214,7 +215,7 @@
   <div class="section" id="getstatic">
 <h1>getstatic<a class="headerlink" href="#getstatic" title="Permalink to this headline">¶</a></h1>
 <ul class="simple">
-<li><p>It is recommended to use the [OGNL] (ognl.md) command, which will be more flexibility.</p></li>
+<li><p>It is recommended to use the [OGNL] (ognl.md) command, which will be more flexible.</p></li>
 </ul>
 <p>Check the static fields of classes conveniently, the usage is <code class="docutils literal notranslate"><span class="pre">getstatic</span> <span class="pre">class_name</span> <span class="pre">field_name</span></code>.</p>
 <div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">$ getstatic demo.MathGame random