docs: minor README polish for replication and rvf-crypto #100

Job	Run time
Build Graph win32-x64-msvc	6m 34s
Build Graph darwin-arm64	3m 9s
Build Graph linux-arm64-gnu	3m 37s
Build Graph darwin-x64	3m 56s
Build Graph linux-x64-gnu	3m 25s
Publish Graph Node Platform Packages	0s
	20m 41s

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