Duplicate book entries

[Gustav]

There are two entries for Achieving Devops:

https://www.goodreads.com/book/show/4... (has both authors on it, kindle)
https://www.goodreads.com/book/show/4... (has ISBN and two ratings on it, but only one author, paperback)

This seems like it should be combined.

[Manon「マノン」]

Done

[Gustav]

Thank you!