how to start new gatsby project 20121 code example

Example 1: create gatsby app

gatsby new my-app

Example 2: create new project gatsby

//Create new project 
gatsby new [gatsby-project-name] https://github.com/gatsbyjs/gatsby-starter-hello-world
cd [gatsby-project-name]

//initialize developer server
gatsby develop 

//create production build the project
gatsby build
gatsby serve