gatsby-v3-demo | demo -

Use the Gatsby CLI to create a new site, specifying the blog starter. Navigate into your new site’s directory and start it up.
Create a Gatsby site. Use the Gatsby CLI to create a new site, specifying the blog starter. # create a new Gatsby site using the blog starter gatsby new my-blog-starter https://github.com/gatsbyjs/gatsby-starter-blog
Start developing. Navigate into your new site’s directory and start it up. cd my-blog-starter/ gatsby develop
Open the source code and start editing! Your site is now running at http://localhost:8000! Note: You'll also see a second link: http://localhost:8000/___graphql. This is a tool you can use to experiment with querying your data. Learn more about using this tool in the Gatsby tutorial. Open the my-blog-starter directory in your code editor of choice and edit src/pages/index.js. Save your changes and the browser will update in real time!