fix:改正示例代码错误。

source/_posts/shiro-spring.md

@@ -380,6 +380,7 @@ public class TokenStore {
 @Component
 @RequiredArgsConstructor
 public class TokenRealm extends AuthorizingRealm {
+  private final MemberRepository memberRepository;
   private final TokenStoreRepository storeRepository;
 
   @Override