dev docs: add documentation to the rocksdb configuration #1771

Job	Run time
Enforce CHANGELOG / changelog	2s
Build Madara / build	9m 23s
Run Coverage / coverage	30m 31s
Run linters / prettier	8s
Run linters / markdown-lint	16s
Run linters / toml-lint	19s
Run check / rust_check	58s
Run Cargo linters / cargo-lint	10m 34s
Run JS Tests / js-test	3m 45s
	55m 56s

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