At least we should mention that the dialect selection is automatic and nothing is expected to need to be explicitly configured by the users.

We might also want to add a section to recap which features are version specific, e.g. differences between allowed choices for:

• org.hibernate.search.elasticsearch.schema.impl.model.DataType
• org.hibernate.search.elasticsearch.schema.impl.model.IndexType
• others?

There's an example mentioning analyzers defined in elasticsearch.yml, AFAIK that's not longer allowed in ES5 so we either mention it there or need to rethink the example to be version-agnostic.