docs: Light grammar tidying in documentation #876

Job	Run time
exclude-test-jobs	1s
quality	1m 11s
tests (ubuntu-latest, 3.9, highest)	22s
tests (ubuntu-latest, 3.9, lowest-direct)	24s
tests (ubuntu-latest, 3.10, highest)	26s
tests (ubuntu-latest, 3.10, lowest-direct)	33s
tests (ubuntu-latest, 3.11, highest)	24s
tests (ubuntu-latest, 3.11, lowest-direct)	25s
tests (ubuntu-latest, 3.12, highest)	33s
tests (ubuntu-latest, 3.12, lowest-direct)	37s
tests (ubuntu-latest, 3.13, highest)	28s
tests (ubuntu-latest, 3.13, lowest-direct)	9s
tests (ubuntu-latest, 3.14, highest)	1m 9s
tests (ubuntu-latest, 3.14, lowest-direct)	23s
tests (macos-latest, 3.9, highest)	50s
tests (macos-latest, 3.10, highest)	57s
tests (macos-latest, 3.11, highest)	29s
tests (macos-latest, 3.12, highest)	35s
tests (macos-latest, 3.13, highest)	26s
tests (macos-latest, 3.14, highest)	1m 18s
tests (windows-latest, 3.9, highest)	51s
tests (windows-latest, 3.10, highest)	54s
tests (windows-latest, 3.11, highest)	55s
tests (windows-latest, 3.12, highest)	51s
tests (windows-latest, 3.13, highest)	55s
tests (windows-latest, 3.14, highest)	4m 11s
	20m 17s

Provide feedback