The src for this website is at https://github.com/gatsbyjs/gatsby/tree/master/examples/using-contentful
The Contentful site that is providing the data for this site is at https://discovery.contentful.com/entries/by-content-type/2PqfXUJwE8qSYKuM0U6w8M?delivery_access_token=e481b0f7c5572374474b29f81a91e8ac487bb27d70a6f14dd12142837d8e980a&space_id=ubriaw6jfhm1