Update header.html

Author: Gangzi-Jia

_includes/header.html

@@ -59,7 +59,7 @@
         <li><a class="waves-effect" href="{{site.baseurl}}/"><i class="material-icons">home</i>首页</a></li>
         <li>
           <a class="waves-effect collapsible-header" href="javascript:void(0);">
-            <i class="material-icons">description</i>成效
+            <i class="material-icons">description</i>本科生科研实习成效
             <i class="material-icons right">arrow_drop_down</i>
           </a>
           <ul class="collapsible-body">