Configure synonyms

[mberrueta]

First, thanks for this library, is awesome !

It seems that the library support it, but for some reason is not working (most likely I'm doing wrong)

In the settings section you have defined synonyms

algoliax/lib/algoliax/settings.ex

Line 54 in 7d9267d

:synonyms,

But I can't find any example

so if I configure

 use Algoliax.Indexer,
    index_name: :locations,
    object_id: :object_id,
    algolia: [
      attributes_for_faceting: ["city", "state", "neighborhood"],
      searchable_attributes: ["city", "state", "neighborhood"],
      custom_ranking: ["desc(importance)"],
      ranking: ["desc(importance)", "desc(custom_ranking)"],
      replicas: [
        "locations_importance_asc"
      ],
      synonyms: ["SSA", "Salvador", "Salvador da Bahia"]
    ]

I get

** (Algoliax.AlgoliaApiError) Algolia HTTP error:

400 : String is supported only for attributes, attributesToRetrieve, unretrievableAttributes, attributesToHighlight, attributesToSnippet, ranking, customRanking, attributesForFaceting, removeWordsIfNoResults, attributeCriteriaComputedBy, queryType and reRankingApplyFilter attributes near line:1 column:1352

    (algoliax 0.9.1) lib/algoliax/client.ex:48: Algoliax.Client.handle_error/4
    (algoliax 0.9.1) lib/algoliax/resources/index.ex:12: Algoliax.Resources.Index.ensure_settings/4
    (elixir 1.18.2) lib/enum.ex:987: Enum."-each/2-lists^foreach/1-0-"/2
    (algoliax 0.9.1) lib/algoliax/utils.ex:26: Algoliax.Utils.index_name/2
    (algoliax 0.9.1) lib/algoliax/resources/object.ex:25: Algoliax.Resources.Object.save_objects/4

Is there any way to configure it?