数据库系统原理—隐式与“显示”锁定 中 “显示”应改成“显式”

[wxhnewStar]

https://github.com/CyC2018/CS-Notes/blob/master/notes/%E6%95%B0%E6%8D%AE%E5%BA%93%E7%B3%BB%E7%BB%9F%E5%8E%9F%E7%90%86.md#mysql-%E9%9A%90%E5%BC%8F%E4%B8%8E%E6%98%BE%E7%A4%BA%E9%94%81%E5%AE%9A

[CyC2018]

@wxhnewStar 已修复，感谢反馈！