Improve documentation of Path #4006

Job	Run time
check	2m 5s
cargo-hack	6m 35s
check-docs	50s
cargo-public-api-crates (axum)	1m 9s
cargo-public-api-crates (axum-core)	51s
cargo-deny check (advisories)	27s
dependencies-are-sorted	43s
Spell Check with Typos	5s
cargo-public-api-crates (axum-extra)	58s
cargo-deny check (bans licenses sources)	21s
cargo-public-api-crates (axum-macros)	56s
armv5te-unknown-linux-musleabi	1m 18s
test-docs	2m 28s
test-msrv	7m 12s
test-nightly	2m 26s
test-versions (stable)	4m 41s
wasm32-unknown-unknown	32s
test-versions (beta)	2m 2s
	35m 39s

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