fix another broken link

suchwow/templates/leaderboard.html

@@ -15,7 +15,7 @@
       </tr>
       {% for poster, data in posters.items() | sort(attribute='1.amount', reverse=True) %}
         <tr>
-          <td><a href="/?submitter={{ poster }}">{{ poster }}</a></td>
+          <td><a href="/?content=&submitter={{ poster }}">{{ poster }}</a></td>
           <td>{{ data["posts"] | length }}</td>
           <td>{{ data["amount"] }} WOW</td>
         </tr>