Add asynchronous search descriptions.

[Naarcha-AWS]

Updates the query parameter descriptions for asynchronous search API.

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[github-actions]

Changes Analysis

Commit SHA: cd09c98
Comparing To SHA: f021351

API Changes

Summary

└─┬Paths
  ├─┬/_plugins/_asynchronous_search/stats
  │ └─┬GET
  │   └──[🔀] description (3707:20)
  ├─┬/_plugins/_asynchronous_search/{id}
  │ ├─┬GET
  │ │ └──[🔀] description (3689:20)
  │ └─┬DELETE
  │   └──[🔀] description (3672:20)
  ├─┬/_opendistro/_asynchronous_search/{id}
  │ ├─┬GET
  │ │ └──[🔀] description (13174:20)
  │ └─┬DELETE
  │   └──[🔀] description (13193:20)
  ├─┬/_plugins/_asynchronous_search
  │ └─┬POST
  │   ├──[🔀] description (3649:20)
  │   ├─┬Parameters
  │   │ └──[🔀] description (15644:20)
  │   ├─┬Parameters
  │   │ └──[🔀] description (15650:20)
  │   └─┬Parameters
  │     └──[🔀] description (15635:20)
  ├─┬/_opendistro/_asynchronous_search
  │ └─┬POST
  │   ├──[🔀] description (13130:20)
  │   ├─┬Parameters
  │   │ └──[🔀] description (15635:20)
  │   ├─┬Parameters
  │   │ └──[🔀] description (15644:20)
  │   └─┬Parameters
  │     └──[🔀] description (15650:20)
  └─┬/_opendistro/_asynchronous_search/stats
    └─┬GET
      └──[🔀] description (13155:20)

Document Element	Total Changes	Breaking Changes
paths	14	0

• Total Changes: 14
• Modifications: 14

Report

The full API changes report is available at: https://github.com/opensearch-project/opensearch-api-specification/actions/runs/12715319318/artifacts/2414636143

API Coverage

	Before	After	Δ
Covered (%)	643 (62.98 %)	643 (62.98 %)	0 (0 %)
Uncovered (%)	378 (37.02 %)	378 (37.02 %)	0 (0 %)
Unknown	43	43	0

[github-actions]

Spec Test Coverage Analysis

Total	Tested
573	570 (99.48 %)

[natebower]

@Naarcha-AWS A couple changes. Thanks!