Kim Kardashian has gushed over her marriage to Kanye West as she marked their wedding anniversary on Instagram.The Keeping Up With The Kardashians star, 39, celebrated six years of marriage to the 42 year old Gold Digger singer with two intimate photographs of the couple.The images, which mum of four Kim shared on her Instagram grid, show Kanye wearing a white t-shirt while sitting at a table and closing his eyes.