Add syntax highlighting to code blocks in README.md (#197) #102

Job	Run time
build-and-test (windows-latest)	30m 16s
build-and-test (ubuntu-latest)	20m 47s
build-and-test (macos-13)	17m 46s
build-and-test (macos-14)	11m 38s
	1h 20m 27s

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