Update docs and benchmarks for v0.2.0 #38

Job	Run time
test-linux	3m 32s
cross-compile (x86_64-linux-gnu)	3m 22s
cross-compile (x86_64-macos-none)	3m 16s
cross-compile (aarch64-linux-gnu)	3m 35s
cross-compile (aarch64-macos-none)	3m 18s
test-macos	2m 51s
	19m 54s

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