German: uncombine, add subtitle

[Martin]

Hi,

https://www.goodreads.com/book/show/2... and https://www.goodreads.com/book/show/2... are two different books with different authors (which is very difficult to overlook).

To avoid future confusion, the subtitle "Geschichte einer wilden Handlung" shoould be added to https://www.goodreads.com/book/show/2... (
9783406821806) and corrected in the case of the Kindle version: https://www.goodreads.com/book/show/2...

Thanks

Martin Riexinger