Congrats and as others said, make it known to all potential brides out there.
I do not advertise on the knot, but I do visit quite often, especially since I myself am a future bride. I like the message boards, but very seldom go to the flower board anymore. It is all about DIY, where the public can buy wholesale, and how florist charge "too much". There is one lady on there that drives my nuts, she is a so called florist and most of her info is misleading or just false. She told a bride who was looking for a blue rose that there is a naturally grown blue rose. I told her there was not, that they are dyed. She tried to prove me wrong by posting a website for them. I searched the website and found the "fine print" that the roses are in fact dyed! So, I proved HER wrong. She had no response to that.
anyway, enough rambling, Congratulations again, and use is, use it, and use it again. Like others said, I dosen't matter if it is a "true" award. If the knot gave you an award, weither it was just to you as a florist or you and other florist who advertise, it IS an award. So be proud and show it!!