Async search editorial

[Naarcha-AWS]

Adds comments from #781

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[github-actions]

Changes Analysis

Commit SHA: bf864b1
Comparing To SHA: 592336a

API Changes

Summary

└─┬Paths
  ├─┬/_opendistro/_asynchronous_search
  │ └─┬POST
  │   ├─┬Parameters
  │   │ └──[🔀] description (15990:20)
  │   ├─┬Parameters
  │   │ └──[🔀] description (15999:20)
  │   └─┬Parameters
  │     └──[🔀] description (16005:20)
  ├─┬/_plugins/_asynchronous_search/stats
  │ └─┬GET
  │   └──[🔀] description (3707:20)
  ├─┬/_plugins/_asynchronous_search
  │ └─┬POST
  │   ├─┬Parameters
  │   │ └──[🔀] description (15999:20)
  │   ├─┬Parameters
  │   │ └──[🔀] description (16005:20)
  │   └─┬Parameters
  │     └──[🔀] description (15990:20)
  └─┬/_opendistro/_asynchronous_search/stats
    └─┬GET
      └──[🔀] description (13510:20)

Document Element	Total Changes	Breaking Changes
paths	8	0

• Total Changes: 8
• Modifications: 8

Report

The full API changes report is available at: https://github.com/opensearch-project/opensearch-api-specification/actions/runs/12952545342/artifacts/2481532722

API Coverage

	Before	After	Δ
Covered (%)	662 (64.84 %)	662 (64.84 %)	0 (0 %)
Uncovered (%)	359 (35.16 %)	359 (35.16 %)	0 (0 %)
Unknown	45	45	0

[natebower]

LGTM. Moving forward, please ensure that any added/modified text is submitted for editorial review prior to merging. Thanks!

[github-actions]

Spec Test Coverage Analysis

Total	Tested
594	593 (99.83 %)