docs: Sync README.md with crate docs #953

Job	Run time
clippy	10s
fmt	40s
msrv (ubuntu-latest)	1m 15s
cross (ubuntu-latest, nightly)	2m 28s
security_audit	12s
msrv (windows-latest)	2m 13s
cross (ubuntu-latest, stable)	1m 28s
test (ubuntu-latest, nightly)	1m 34s
cross (macos-latest, nightly)	1m 48s
test (ubuntu-latest, beta)	2m 19s
cross (macos-latest, stable)	1m 50s
wine	2m 6s
test (ubuntu-latest, stable)	1m 36s
test (windows-latest, nightly)	1m 55s
test (windows-latest, beta)	1m 53s
test (windows-latest, stable)	2m 55s
test (macos-latest, nightly)	1m 4s
test (macos-latest, beta)	1m 15s
test (macos-latest, stable)	1m 30s
test (windows-latest, nightly-x86_64-pc-windows-gnu)	2m 32s
test (windows-latest, nightly-i686-pc-windows-msvc)	2m 38s
test (windows-latest, nightly-i686-pc-windows-gnu)	2m 25s
	37m 46s

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