centered leaderboard heading

Author: Ankit7Das

leaderboard.html

@@ -90,7 +90,7 @@
 
       <main class="mdl-layout__content">
         <div class="nwoc-content" style="min-height:calc(100vh - 235px);">
-          <h3>NWoC 2020 Leaderboard</h3>
+          <h3 style="text-align: center;">NWoC 2020 Leaderboard</h3>
           <div id="leader-div" style='overflow-x:auto'>
             <p>Leaderboard loading...</p>
           </div>