Docs: Fix environment checker output descriptions

[kraftbj]

Fixes #

Proposed changes:

• Fix environment checker output descriptions to match actual script output
• quick-start.md: Change "YES or OK" to "ok or yes", "NO" to "no"
• development-environment.md: Change "SUCCESS" to "ok or yes", "FAILED" to "no"

The actual output of tools/check-development-environment.sh uses lowercase ok, yes, and no.

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
• Have you tested your changes on WordPress.com, if applicable?

Jetpack product discussion

N/A - Documentation fix

Does this pull request change what data or activity we track or use?

No

Testing instructions:

• Run tools/check-development-environment.sh and verify the output uses lowercase ok, yes, and no
• Review the updated descriptions in docs/quick-start.md and docs/development-environment.md

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[Copilot]

Pull request overview

This PR fixes documentation inaccuracies in the environment checker output descriptions. The actual tools/check-development-environment.sh script uses lowercase messages (ok, yes, no), but the documentation incorrectly referenced uppercase variations (YES, OK, NO, SUCCESS, FAILED).

• Updated message references from uppercase to lowercase to match actual script output
• Applied changes consistently across both quick-start and development-environment documentation files

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
docs/quick-start.md	Changed YES or OK to ok or yes and NO to no in environment checker output descriptions
docs/development-environment.md	Changed SUCCESS to ok or yes and FAILED to no in environment checker output descriptions, also fixed grammar from "detect" to "detects"

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.