* Update update-by-query.md
Updated the slices parameter description to be in-line with what's actually available. You can specify the string 'auto' as well. The text is pulled from the https://github.com/opensearch-project/documentation-website/blob/main/_api-reference/document-apis/delete-by-query.md documentation to keep in sync.
* Update _api-reference/document-apis/update-by-query.md
Signed-off-by: Naarcha-AWS <97990722+Naarcha-AWS@users.noreply.github.com>
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Signed-off-by: Naarcha-AWS <97990722+Naarcha-AWS@users.noreply.github.com>
Co-authored-by: Naarcha-AWS <97990722+Naarcha-AWS@users.noreply.github.com>