Improve documentation of Path #3990

Job	Run time
check-docs	44s
cargo-hack	11m 1s
check	3m 40s
cargo-public-api-crates (axum)	59s
cargo-deny check (advisories)	22s
cargo-public-api-crates (axum-core)	1m 50s
cargo-deny check (bans licenses sources)	25s
dependencies-are-sorted	46s
Spell Check with Typos	6s
cargo-public-api-crates (axum-extra)	1m 3s
cargo-public-api-crates (axum-macros)	45s
test-versions	0s
test-msrv	0s
test-nightly	0s
test-docs	0s
armv5te-unknown-linux-musleabi	0s
wasm32-unknown-unknown	0s
	21m 41s

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