feat: 修改了代码段

Author: eveningwater

README.md

@@ -429,7 +429,7 @@
 - [监听一次事件-2022-11-18](codes/javascript/listen-once.md)
 - [计算给定基数的对数-2022-11-19](codes/javascript/log-base.md)
 - [最长的项-2022-11-20](codes/javascript/longest-item.md)
-- [属性名小写-2022-11-21](codes/javascript/lowercaseKeys.md)
+- [属性名小写-2022-11-21](codes/javascript/lowercase-keys.md)
 - [模 10 算法-2022-11-22](codes/javascript/luhnCheck.md)
 - [映射连续元素-2022-11-23](codes/javascript/mapConsecutive.md)
 - [映射属性-2022-11-24](codes/javascript/mapKeys.md)