Fix comments #185

Job	Run time
Bitrot check	1m 34s
Book tests	4m 8s
Intra-doc links	4m 12s
Build target wasm32-unknown-unknown	4m 22s
Build target wasm32-wasi	4m 18s
Rustfmt	14s
Test on ubuntu-latest	9m 29s
Test on windows-latest	11m 22s
Test on macOS-latest	13m 7s
Test on ubuntu-latest with beta features	9m 41s
Test on windows-latest with beta features	11m 21s
Test on macOS-latest with beta features	17m 41s
Test on ubuntu-latest with nightly features	10m 35s
Test on windows-latest with nightly features	12m 26s
Test on macOS-latest with nightly features	13m 38s
	2h 8m 8s

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