feat(book): Frames #893

Job	Run time
doctest	31s
wasm-unknown	32s
cfg-check	17s
feature-checks	1m 42s
docs	21s
clippy	39s
fmt	13s
no-std	30s
test stable --no-default-features	1m 4s
wasm-wasi	24s
feature-powerset	2m 59s
test stable	40s
test stable --all-features	1m 22s
test nightly --no-default-features	46s
test nightly	42s
test nightly --all-features	1m 5s
test 1.81 --no-default-features	29s
test 1.81	37s
	14m 53s

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