"Such a privilege to be married to you." Credit: GettyThe GistCindy Crawford and husband Rande Gerber are celebrating their 28th wedding anniversary. The model shared two sweet photos along with an emotional tribute to Gerber to mark the occasion."Such a privilege to be married to you," she wrote.Cindy Crawford and Rande Gerber are celebrating 28 years of marriage. The supermodel shared a heartfelt post with one old photo and one new, reminding …