4.x doc improvements #2 #8410

Job	Run time
Build CJS (18)	2m 9s
Build CJS (16)	2m 15s
Build ESM (18)	1m 0s
Build ESM (16)	1m 1s
Lint	2m 3s
Build Web	31s
Build Types (18)	55s
Build Types (16)	57s
End-to-End ganache:ws (18, electron)	9m 41s
End-to-End ganache:ws (18, chrome)	9m 59s
Integration IPC (18, geth, ipc)	9m 23s
End-to-End ganache:ws (18, firefox)	9m 30s
Integration IPC (16, geth, ipc)	9m 34s
End-to-End ganache:ws (16, electron)	9m 37s
Integration (18, geth, http)	2m 3s
End-to-End ganache:ws (16, chrome)	9m 37s
Integration (18, geth, ws)	4m 34s
End-to-End ganache:ws (16, firefox)	9m 24s
Unit Tests (18)	4m 2s
Integration (18, ganache, http)	3m 4s
Unit Tests (16)	4m 13s
Integration (18, ganache, ws)	4m 28s
Integration (16, geth, http)	1m 59s
Benchmark Tests (18)	1m 27s
Integration (16, geth, ws)	4m 39s
Integration (16, ganache, http)	2m 58s
Integration (16, ganache, ws)	4m 23s
Build Docs (18)	5m 3s
	2h 10m 29s

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