improve doc about collection input #4460

Job	Run time
skip_duplicate	5s
tests (ubuntu-latest, 3.8, false, test-unit-only)	5m 18s
tests (ubuntu-latest, 3.8, false, test-func-only)	13m 58s
tests (ubuntu-latest, 3.9, false, test-unit-only)	5m 37s
tests (ubuntu-latest, 3.9, false, test-func-only)	14m 33s
tests (ubuntu-latest, 3.10, false, test-unit-only)	5m 37s
tests (ubuntu-latest, 3.10, false, test-func-only)	13m 26s
tests (ubuntu-latest, 3.11, false, test-unit-only)	4m 16s
tests (ubuntu-latest, 3.11, false, test-func-only)	12m 45s
tests (ubuntu-latest, 3.12, true, test-unit-only)	5m 2s
tests (ubuntu-latest, 3.12, true, test-func-only)	13m 48s
tests (ubuntu-latest, 3.10, false, check-all)	8m 13s
tests (ubuntu-latest, 3.10, false, docs)	7m 33s
tests (ubuntu-latest, 3.10, false, test-coverage-only)	20m 35s
tests (ubuntu-latest, 3.10, false, test-docker)	2m 37s
tests (ubuntu-latest, 3.10, true, test-workflow-only)	5m 52s
deploy-docker	0s
	2h 19m 15s

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