Update February 15th, 2018:
Since this post seems to be really busy: here is the link to all the manuals:
Since I started this threat, I edit it right now.
The old link is broken, and there is a new manual with even 30 pages more! Thanks to albert0984 for the alert and MarcLarcher for the addition for spanish users.
albert0984 posted this: https://steinberg.help/dorico/v1/en/dorico_en.pdf
MarcLarcher that: https://steinberg.help/dorico/v1/es/dorico_es.pdf
My addition for german users:
Obviously, you can find different languages when you just change the localisation letters.
Oops, there was a typo for the spanish manual. Sorry!
here is the link to the newly published manual:
So many thanks to the Dorico team - between all this holidays!!!