client
                name: Install with PGNXClient
            2 :
                link: install-with-git
                name: Install with Git
            3 : 
                link: creating-the-extension
                name: Create the Extension
            4 :
                link: vagrant
                name: Vagrant
    2 : 
        link : train-your-model
        name : Train Your Model
    3 : 
        link : deploy
        name : Deploy
    4 :
        link : next-steps
        name : Next Step