How do I replace the screen?

i just read the ifixit article about replacing the display assembly because my screen is broken (the phone fell on the floor..) but i don't understand at what step i'm supposed to actually replace the screen ? i get it's the eplanation of the opening of the phone etc but it doesn't actually says what you're supposed to do when it's done .. or maybe i just don't get it.

The fairphone 1 second batch !