The Local Newspaper Is Offering A Free Editorial Piece When I Buy An Advert.how Is An Editorial Piece Defined?

My weekly local newspaper is having a special section on computers etc next week. They are offering a free 200 word editorial piece and a photo if I buy a small advert. The lady I spoke to said is was a way to promote my business.
I have been looking up the definition of an editorial piece, and it seems to be a piece that expresses a personal opinion, and not really a marketing piece.
I want to promote my competetion for a website, and are wondering if that would be crossing the line for an editorial piece. But since the lady said it was a way of promoting my website, I am thinking that I can write whatever I want to.
Just looking for someone who has experience with marketing via newspapers, and who knows whether an “editorial piece” in connection with an advert, is more broadly defined as a promotional piece?
Thanks!