Tests

Replace link to rust-random-hosted API docs #35

Job	Run time
test-cross (ubuntu-latest, powerpc-unknown-linux-gnu, stable)	30s
test-no-std	16s
test-miri	35s
test (ubuntu-latest, x86_64-unknown-linux-gnu, MSRV, 1.63.0)	3m 36s
test (ubuntu-latest, x86_64-unknown-linux-gnu, stable)	14s
test (windows-latest, x86_64-pc-windows-gnu, stable)	35s
test (macos-latest, x86_64-apple-darwin, stable)	13s
test (ubuntu-latest, sudo apt-get update ; sudo apt install gcc-multilib, i686-unknown-linux-gnu,...	36s
test (ubuntu-latest, x86_64-unknown-linux-gnu, nightly, minimal_versions)	14s
test (windows-latest, x86_64-pc-windows-msvc, beta)	34s
test-ios	20s
Check doc, clippy, fmt	15s
	7m 58s

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