[UPDATE] Modify JPA method name

[LOG-INFO]

I am studying well by listening to your lecture.

Today I listened to your lecture (Section 11, Lecture 223. Fix Find Owner Like). In this lecture, you fixed

ownerService.findAllByLastNameLike(owner.getLastName());

to

ownerService.findAllByLastNameLike("%"+ owner.getLastName() + "%")

I searched for JPA method keyword, and I found Containing keyword.

So I fixed this code like this, and it works fine!

ownerService.findAllByLastNameContaining(owner.getLastName());

Please check this!

Your lecture is very good for me!
Thank you very much!

[LOG-INFO]

In additional, This is my first PR to other's repository.
Please let me know if this is the right way to PR.