Slightly updated crypto document #3919

Job	Run time
ci / discover	24s
ci / check / .+check-markdown	1m 41s
ci / check / .+check-spelling	1m 55s
ci / check / .+check-sqlfluff	2m 17s
ci / check / ./catalyst-gateway+check	49s
ci / check / ./catalyst_voices+check-code-formatting	3m 41s
ci / check / ./catalyst_voices+check-flutter-code-generator	3m 50s
ci / check / ./catalyst_voices+check-license	3m 32s
ci / check / ./catalyst_voices+check-package-publishing	3m 17s
ci / check / ./catalyst_voices+check-static-analysis	4m 7s
ci / check / ./utilities/wallet-tester+check	30s
ci / build	0s
ci / package	0s
ci / test	0s
ci / publish	0s
ci / docs	0s
ci / release	0s
ci / final	0s
	26m 3s

Provide feedback