For some reason step 4 is not in the article .
Step 4 Make a loop of the black embroidery floss on the right side of the shank and then take the rest of the floss over the hook shank. The bring the red floss under the black floss, over the black floss and under the hook shank. Then through the loop in the black floss. Pull tight.
Sorry that I can't get the picture in this message.