minor readme fix #176

Job	Run time
lint	1m 8s
test (ubuntu-latest, 3.10, jax)	5m 40s
test (ubuntu-latest, 3.10, tensorflow)	5m 32s
test (ubuntu-latest, 3.10, torch)	4m 23s
test (ubuntu-latest, 3.11, jax)	6m 13s
test (ubuntu-latest, 3.11, tensorflow)	5m 36s
test (ubuntu-latest, 3.11, torch)	4m 12s
test (windows-latest, 3.10, jax)	9m 28s
test (windows-latest, 3.10, tensorflow)	11m 22s
test (windows-latest, 3.10, torch)	10m 3s
test (windows-latest, 3.11, jax)	10m 57s
test (windows-latest, 3.11, tensorflow)	12m 36s
test (windows-latest, 3.11, torch)	10m 14s
	1h 37m 24s

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