Half a star for the good intentions, but it's clear English is not your first language and the tutorial is extremely hard to follow - especially since you tell people what to do, but never go in-depth, so people can mimic what's in the tutorial, but still won't understand what exactly is being done, or how to fix it if something doesn't go according to plan. Lots of room for improvement here, so I don't see this as ready for publication on the site.