vie-autosuggest props incorrect

Hi,

The docs show the following example code for vue-autosuggest:

This does not seem to trigger 'refine'.

@input event does seem to trigger 'refine', as followed:

```

$ {{ suggestion.item.price }}

```

Start with the documented vue-autosuggest example shown in this issue and compare its input-props onInputChange usage with the working @input="refine" example. Update the documentation so the example triggers refine correctly, then verify that the rendered example uses the corrected prop or event wiring.

Written by the indexing model from the issue text.