Inconsistent keyword argument usage in example documentation vs implementation

[mattiassluis]

Elasticsearch version: 8.8

elasticsearch-py version: 8.8.2

Please make sure the major version matches the Elasticsearch server you are running.

Description of the problem including expected versus actual behavior:
Documentation example vs actual implementation on the update of documents is incorrect.
The code of the update method has doc as keyword argument while the official example on the Elasticsearch website mentions document

The same documentation also still refers to body instead of document or doc on both the index and the update method

Steps to reproduce:
N/A