RPC documentation and option fixes #75

Job	Run time
Win64 [unit tests, no gui tests, no boost::process, no functional tests] [jammy]	28m 57s
32-bit + dash [gui] [Rocky 8]	58m 33s
[MSan, depends] [focal]	3h 19m 8s
[no wallet] [bionic]	32m 50s
[fuzzer,address,undefined,integer, no depends] [jammy]	55m 43s
lint [focal]	33m 49s
[ASan + LSan + UBSan + integer, no depends] [jammy]	1h 16m 12s
[TSan, depends, gui] [2404]	1h 47m 55s
macOS 10.15 [gui, no tests] [focal]	42m 3s
Win64 native [msvc] (functional tests + unit tests)	1h 53m 47s
macOS 13 native arm64 [gui, sqlite only] [no depends]	31m 13s
ARM [unit tests, no functional tests] [bullseye]	2h 0m 15s
	15h 0m 25s

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