Small README cleanups (#265) #790

Job	Run time
ci (highest, windows-2025, 3.14, nocov)	1m 6s
ci (highest, macos-15, 3.14, nocov)	8m 28s
ci (ubuntu-24.04, 3.14, cov, lowest-direct)	11m 1s
ci (lowest-direct, macos-15, 3.10, nocov)	8m 21s
ci (lowest-direct, windows-2025, 3.14, nocov)	1m 2s
ci (highest, ubuntu-24.04, 3.14, nocov)	10m 56s
ci (highest, macos-15, 3.10, nocov)	8m 18s
ci (ubuntu-24.04, 3.11, nocov, lowest-direct)	10m 30s
ci (highest, ubuntu-24.04, 3.10, nocov)	10m 29s
ci (highest, windows-2025, 3.10, nocov)	57s
ci (ubuntu-24.04, 3.12, nocov, lowest-direct)	10m 25s
ci (lowest-direct, ubuntu-24.04, 3.14, nocov)	11m 2s
ci (lowest-direct, windows-2025, 3.10, nocov)	54s
ci (lowest-direct, macos-15, 3.14, nocov)	8m 21s
ci (lowest-direct, ubuntu-24.04, 3.10, nocov)	10m 49s
ci (ubuntu-24.04, 3.13, nocov, lowest-direct)	10m 57s
publish	1m 24s
	2h 5m 0s

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