Hi Oleg, I prefer to have the user manual as a PDF on my Kindle, so I download it from here: https://robotask.com/downloads/robotask.pdf
When was it last updated though? I put it on my Kindle about 5 or 6 months ago. Is that version still the current one?
Suggestion:
Maybe put at the bottom of the cover (page 1)
Lasted updated on {Date}
That way I can tell if I have the most recent version.