add doc details about content link headers #4021

Job	Run time
skip_duplicate	5s
tests (ubuntu-latest, 3.8, false, test-unit-only)	5m 1s
tests (ubuntu-latest, 3.8, false, test-func-only)	6m 10s
tests (ubuntu-latest, 3.9, false, test-unit-only)	5m 10s
tests (ubuntu-latest, 3.9, false, test-func-only)	6m 12s
tests (ubuntu-latest, 3.10, false, test-unit-only)	5m 23s
tests (ubuntu-latest, 3.10, false, test-func-only)	6m 13s
tests (ubuntu-latest, 3.11, false, test-unit-only)	4m 7s
tests (ubuntu-latest, 3.11, false, test-func-only)	6m 10s
tests (ubuntu-latest, 3.12, true, test-unit-only)	4m 27s
tests (ubuntu-latest, 3.12, true, test-func-only)	6m 9s
tests (ubuntu-latest, 3.10, false, check-all)	5m 52s
tests (ubuntu-latest, 3.10, false, docs)	6m 7s
tests (ubuntu-latest, 3.10, false, test-coverage-only)	6m 16s
tests (ubuntu-latest, 3.10, false, test-docker)	2m 44s
tests (ubuntu-latest, 3.10, true, test-workflow-only)	5m 9s
deploy-docker	0s
	1h 21m 15s

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