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Create comprehensive README with version note #24

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Run time

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Job	Run time
Test JDK 8, macOS-14	29s
Test JDK 11, macOS-14	35s
Test JDK 8, ubuntu-latest	27s
Test JDK 21, ubuntu-latest	35s
Test JDK 21, macOS-14	32s
Test JDK 11, ubuntu-latest	36s
	3m 14s