Use facets

[curquiza]

Make the scraper use the facets (when the facets feature will be ready in a stable version of MeiliSearch) I will be useful for the docs versioning and the handling of the different languages.

Edit

• [ ] Add example in README (even the custom_settings part for attributesForFaceting)

[bidoubiwa]

attributesForFaceting are now called filterableAttributes.

If I understand correctly your suggestion. We want to add filterableAttributes as a setting option like this:

"custom_settings": {
    "filterableAttributes": ["genres", "type"],
    "stopWords": ["of", "the"]
  },

and add it to the list of settings added on the chosen index.

If this addition works natively, only an update of the reamde is needed.

[Smartmind12]

@curquiza @bidoubiwa Kindly review the PR and suggest feedback if any...Thanks!