[2.4] [ISSUE-29299] Fix Build-in README installation command.

[progreg]

Description (*)

Fix Build-in README installation command.

• Add required ElasticSearch params since 2.4.
• Add new line concatenation character

Related Pull Requests

Fixed Issues (if relevant)

1. Fixes PHP build-in webserver readme cmd line installation command is outdated #29299

Manual testing scenarios (*)

1. Open phpserver/README.MD
2. copy How to install Magento command and paste into the terminal

Questions or comments

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

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[magento-engcom-team]

Hi @swnsma, thank you for the review.
ENGCOM-7910 has been created to process this Pull Request
✳️ @swnsma, could you please add one of the following labels to the Pull Request?

Label	Description
Auto-Tests: Covered	All changes in Pull Request is covered by auto-tests
Auto-Tests: Not Covered	Changes in Pull Request requires coverage by auto-tests
Auto-Tests: Not Required	Changes in Pull Request does not require coverage by auto-tests

[engcom-Alfa]

✔️ QA Passed

Actual Result: ✔️ Magento was successfully installed.

[engcom-Charlie]

@magento run all tests

[m2-assistant]

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