Update README.md #38

Job	Run time
build (ubuntu-latest, Debug, gcc, 0)	9s
build (ubuntu-latest, Debug, gcc, 2)	11s
build (ubuntu-latest, Debug, clang, 0)	10s
build (ubuntu-latest, Debug, clang, 2)	24s
build (ubuntu-latest, Release, gcc, 0)	8s
build (ubuntu-latest, Release, gcc, 2)	24s
build (ubuntu-latest, Release, clang, 0)	9s
build (ubuntu-latest, Release, clang, 2)	13s
build (macos-latest, Debug, gcc, 0)	33s
build (macos-latest, Debug, gcc, 2)	25s
build (macos-latest, Debug, clang, 0)	36s
build (macos-latest, Debug, clang, 2)	33s
build (macos-latest, Release, gcc, 0)	1m 20s
build (macos-latest, Release, gcc, 2)	22s
build (macos-latest, Release, clang, 0)	21s
build (macos-latest, Release, clang, 2)	22s
build (windows-latest, Debug, cl, 0)	54s
build (windows-latest, Debug, cl, 2)	1m 0s
build (windows-latest, Release, cl, 0)	43s
build (windows-latest, Release, cl, 2)	30s
	9m 27s

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