Merge pull request #6 from LikeLion-KNU/HOTFIX

[MODIFY] url_list length increase

src/main/java/LlikelionKNU/KNUfest/domain/booth/entity/BoothEntity.java

@@ -45,5 +45,6 @@ public class BoothEntity extends BasicEntity {
             name = "URL_LIST",
             joinColumns = @JoinColumn(name="booth_id", referencedColumnName = "id")
     )
+    @Column(length = 300)
     private List<String> urls;
 }