Merge 'readme' into HEAD #1618

Job	Run time
config	4s
fuzz smoke test	33s
win+VS build	0s
sparse	5m 6s
static-analysis	3m 25s
linux32 (daald/ubuntu32:xenial)	7m 27s
linux-musl (alpine)	6m 44s
pedantic (fedora)	2m 5s
documentation	3m 19s
win build	6m 44s
linux-asan-ubsan (ubuntu-latest)	28m 22s
linux-gcc (ubuntu-20.04)	7m 3s
linux-gcc-default (ubuntu-latest)	9m 18s
linux-leaks (ubuntu-latest)	10m 34s
linux-sha256 (ubuntu-latest)	9m 50s
linux-TEST-vars (ubuntu-20.04)	7m 16s
osx-clang (macos-13)	29m 25s
osx-gcc (macos-13)	27m 23s
win+VS test	0s
win test (1)	4m 44s
win test (2)	5m 5s
win test (3)	5m 56s
win test (0)	11m 37s
win test (4)	8m 58s
win test (5)	5m 19s
win test (6)	6m 5s
win test (7)	5m 4s
win test (8)	5m 27s
win test (9)	5m 25s
	3h 48m 18s

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