npm install

npm run build

var options = {  container: 'body',  spacing: 20,  actions: {    next: {      text: 'Next',      class: 'your custom button class'    },    finish: {      text: 'Finish',      class: 'your custom button class'    }  },  entries: [    {      selector: '#example',      text: 'this is example',      onEnter: function () {        console.log('enter');      },      onExit: function () {        console.log('exit');      }    }, {      selector: '#step1',      text: 'text for step 1'    }, {      selector: '#step2',      text: 'text for step 2'    }  ]}PageIntro.init(options);PageIntro.start();