Improve forms, add helper buttons on add session form

games/templates/add.html

@@ -9,8 +9,9 @@
 
         {{ form.as_table }}
         <tr>
+            <td></td>
             <td><input type="submit" value="Submit"/></td>
         </tr>
         </table>
     </form>
-{% endblock content %}
+{% endblock content %}