[Documentation] Wrong Codepen Example Code of Stepper Component

[ghost]

Environment

Browsers: Chrome 79.0.3945.130
OS: Mac OS 10.15.3

Steps to reproduce

Access the document page and display the example of the Stepper Component

Expected Behavior

Display the first content of the Stepper Content

Actual Behavior

Not display any contents and the number color of current steps is gray

Reproduction Link

https://vuetifyjs.com/ja/components/steppers#usage

[KaelWD]

Duplicate of #10270

[ghost]

Maybe the script part of the document shoud be fixed as follows

new Vue({
  el: '#app',
  vuetify: new Vuetify(),
  data () {
    return {
      e1: 1, // not 0
    }
  },
})