[proposal] Add a full basic example to introduce components

I believe it would be great to add in the “Quick start” section one example of a full application using bootstrap-vue. This would be particularly useful to those who are not used to Vue components and for whom it could not be obvious how to consume an event from a component.

A basic example showing how click (found in the Event section of the <b-button> component’s documentation) could be used to modify data in the Vue instance:

(HTML)

<div id="root">
  <b-button v-on:click="counter += 1">hello</b-button>
  {{counter}}
</div>

(JS)

new Vue ({
  el: "#root",
  data: {
    counter: 0
  }
})

[alexsasharegan]

@wsw70, how would feel about getting this PR started? It’s fresh in your mind, so you’re perspective would be awesome! You can even leave placeholders or pseudo-code that we can contribute to if you’re still not 100% on how to throw up some app examples.

[tmorehouse]

This is a great idea.