update doc

en/watch.html

@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>watch &mdash; Arthas 3.1.0 documentation</title>
+  <title>watch &mdash; Arthas 3.1.1 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.1.0
+                3.1.1
               </div>
             
           
@@ -100,6 +100,7 @@
 <li class="toctree-l2"><a class="reference internal" href="jvm.html">jvm</a></li>
 <li class="toctree-l2"><a class="reference internal" href="sysprop.html">sysprop</a></li>
 <li class="toctree-l2"><a class="reference internal" href="sysenv.html">sysenv</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mbean.html">mbean</a></li>
 <li class="toctree-l2"><a class="reference internal" href="getstatic.html">getstatic</a></li>
 <li class="toctree-l2"><a class="reference internal" href="ognl.html">ognl</a></li>
 <li class="toctree-l2"><a class="reference internal" href="sc.html">sc</a></li>
@@ -531,7 +532,7 @@ ts=2018-12-03 20:04:35; [cost=0.961441ms] result=@Integer[8]
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.1.0',
+            VERSION:'3.1.1',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',