Just purchased the Robin Hood pattern. Don't understand the brim how it attaches to the hat. I am a newbie. Is there a more descriptive explanation available? I cast the 20 stitches onto the round needle, then used a straight needle to do row one then turned to do row 2. Now I have a rectangle that is not attached in the round to the hat. It is like a tail off of it. Please help. Let me know if I am doing this pattern correct.

Thank you so much.
Catharine