Do I receive a free 3 month pro membership if my Instructable gets featured? Answered

I'm a new member here at Instructables, and I recently posted an Instructable (Soft Chocolate Chip with Walnut Cookie). Later I found out that it was featured, and it was also seen on the front page of Instructables.com under the "Most Popular" section. While reading around here in the forums, I saw that the featured Instructables will sometimes get a free 3 month pro membership. I also read that there is something about "codes" and "expiration" and "activation" for these pro memberships. Can someone clarify this for me? How will you know if you get the free membership, and where would it show?

Thanks!