Set the key correctly on member list

src/member/MemberList.js

@@ -10,8 +10,8 @@ function MemberList() {
 
   const entries = members.map((member) => {
     return (
-      <LinkContainer to={"/member/" + member.num}>
-        <tr key={member.num}>
+      <LinkContainer key={member.num} to={"/member/" + member.num}>
+        <tr>
           <td>{member.num}</td>
           <td>{member.name}</td>
           <td>{member.login}</td>