[이벤트 위임] 과제3 문제 번역 - line 16(#1312)

Author: mrbrightsiide

2-ui/2-events/03-event-delegation/3-sortable-table/task.md

@@ -13,7 +13,7 @@ Each `<th>` has the type in the attribute, like this:
   <thead>
     <tr>
 *!*
-      <th data-type="number">Age</th>
+      <th data-type="number">나이</th>
       <th data-type="string">이름</th>
 */!*
     </tr>