add missing book cover for specific edition

[Caru]

picked up a copy of doctor zhivago today and realized the edition of it on goodreads didnt have a cover image.

the edition is: https://www.goodreads.com/book/show/5...

and the cover is: https://imgur.com/lvdfExp

source for cover: https://www.amazon.com/Doctor-Zhivago...

sorry if this was formatted wrong or if there was an error, new user here. :)

[Martin]

Done.