Update publications.html

Author: suan12

publications.html

@@ -37,6 +37,7 @@
       </div>
     </nav>
     <div class="container">
+      <section>
         <div class="year-filter">
           <button onclick="filterPublications('all')" class="active">
             <strong>All</strong>
@@ -75,7 +76,7 @@
             <strong>2015</strong>
           </button>
         </div>
-
+      </section>
       <section id="publications">
         <div class="publication">
           <ol reversed>