[Landing] Update headings and descriptions for clarity in README, installation, and quickstart guides to amplify agentic orchestration (WIP) #6735

Job	Run time
compute-version	4s
build-docs / build-docs	1m 29s
build-artifacts / gateway-build	16s
build-artifacts / runner-test (macos-latest)	53s
build-artifacts / code-lint	48s
build-artifacts / frontend-build	11s
build-artifacts / runner-test (ubuntu-latest)	1m 5s
build-artifacts / generate-json-schema	21s
build-artifacts / python-build	19s
build-artifacts / python-test (macos-latest, 3.9)	3m 2s
build-artifacts / python-test (macos-latest, 3.12)	2m 46s
build-artifacts / python-test (ubuntu-latest, 3.9)	10m 47s
build-artifacts / python-test (macos-latest, 3.13)	3m 51s
build-artifacts / python-test (macos-latest, 3.10)	3m 26s
build-artifacts / python-test (macos-latest, 3.11)	2m 52s
build-artifacts / python-test (windows-latest, 3.10)	2m 17s
build-artifacts / python-test (ubuntu-latest, 3.10)	10m 8s
build-artifacts / python-test (windows-latest, 3.9)	2m 55s
build-artifacts / python-test (windows-latest, 3.12)	2m 23s
build-artifacts / python-test (ubuntu-latest, 3.13)	9m 31s
build-artifacts / python-test (windows-latest, 3.13)	2m 25s
build-artifacts / python-test (windows-latest, 3.11)	2m 22s
build-artifacts / python-test (ubuntu-latest, 3.12)	9m 35s
build-artifacts / python-test (ubuntu-latest, 3.11)	9m 33s
build-artifacts / runner-compile (ubuntu-24.04-arm, linux, arm64)	27s
build-artifacts / runner-compile (ubuntu-24.04, linux, amd64)	28s
upload-pre-pypi-artifacts / upload-pre-pypi-artifacts	18s
upload-post-pypi-artifacts / upload-post-pypi-artifacts	14s
	1h 24m 46s

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