Exclude README from pre-commit globally #86

Job	Run time
pytester (ubuntu-latest, 3.10, oldest)	1m 1s
pytester (ubuntu-latest, 3.11, oldest)	56s
pytester (ubuntu-latest, 3.10, latest)	59s
pytester (ubuntu-latest, 3.11, latest)	40s
pytester (ubuntu-latest, 3.12, oldest)	44s
pytester (ubuntu-latest, 3.12, latest)	40s
pytester (macOS-latest, 3.10, latest)	1m 2s
pytester (macOS-latest, 3.12, oldest)	40s
pytester (macOS-latest, 3.11, latest)	53s
pytester (ubuntu-latest, 3.13, latest)	38s
pytester (macOS-latest, 3.13, oldest)	49s
pytester (macOS-latest, 3.12, latest)	49s
pytester (macOS-latest, 3.10, oldest)	1m 1s
pytester (macOS-latest, 3.11, oldest)	45s
pytester (ubuntu-latest, 3.13, oldest)	45s
pytester (macOS-latest, 3.13, latest)	48s
tests-guardian	2s
	13m 12s

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