fix: typos in documentation files #2106

Job	Run time
tests (ubuntu-latest, unit, 3.8)	54s
tests (ubuntu-latest, unit, 3.12)	52s
tests (ubuntu-latest, integration, 3.8)	3m 5s
tests (ubuntu-latest, integration, 3.12)	3m 14s
tests (ubuntu-latest, tool, 3.8)	59s
tests (ubuntu-latest, tool, 3.12)	51s
tests (windows-2022, unit, 3.8)	1m 21s
tests (windows-2022, unit, 3.12)	1m 35s
tests (windows-2022, integration, 3.8)	2m 43s
tests (windows-2022, integration, 3.12)	3m 19s
tests (windows-2022, tool, 3.8)	3m 40s
tests (windows-2022, tool, 3.12)	2m 57s
coverage	13s
	25m 43s

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