Update apply-load docs (#4594) #6487

Job	Run time
fmt	15s
cargo-deny (advisories)	44s
rust-check-git-rev-deps	18s
cargo-deny (bans licenses sources)	40s
build (gcc, current)	35m 34s
build (gcc, current, --check-test-tx-meta)	13m 55s
build (gcc, next)	36m 30s
build (gcc, next, --check-test-tx-meta)	14m 50s
build (clang, current)	23m 35s
build (clang, current, --check-test-tx-meta)	14m 42s
build (clang, next)	23m 32s
build (clang, next, --check-test-tx-meta)	15m 7s
complete	1s
	2h 59m 43s

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