https://www.gatsbyjs.org/packages/gatsby-plugin-manifest/
https://www.gatsbyjs.org/blog/2017-11-09-why-i-created-my-blog-with-gatsby-and-contentful/
https://www.gatsbyjs.org/packages/gatsby-plugin-amp/
https://www.gatsbyjs.org/packages/gatsby-source-graphql/
https://www.gatsbyjs.org/packages/gatsby-plugin-feed/
https://www.gatsbyjs.org/starters/tomoyukikashiro/gatsby-starter-blog-amp-to-pwa/
https://www.halfelectronic.com/post/setting-up-gatsby-js-contentful-and-netlify
https://www.freecodecamp.org/news/how-to-write-a-blog-using-gatsby-from-your-phone-e92a99851a04/