chore: Update Vec docs #4127

Job	Run time
build-acvm-js	2m 25s
build-nargo	2m 36s
build-noirc-abi	2m 31s
build-noir-wasm	2m 55s
ACVM JS (Browser)	1m 13s
ACVM JS (Node.js)	37s
noirc_abi	42s
noir-js-backend-barretenberg	52s
noir_codegen	55s
Noir JS	1m 37s
Integration Tests (Node)	5m 23s
Integration Tests (Browser)	5m 19s
noir_wasm	1m 17s
End	1s
	28m 23s

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