add example about compression #4408

Job	Run time
check	57s
cargo-hack	3m 21s
check-docs	25s
cargo-public-api-crates (axum)	31s
cargo-deny check (advisories)	23s
cargo-public-api-crates (axum-core)	24s
dependencies-are-sorted	13s
cargo-deny check (bans licenses sources)	23s
cargo-public-api-crates (axum-extra)	32s
Spell Check with Typos	5s
cargo-public-api-crates (axum-macros)	19s
test-nightly	1m 51s
test-msrv	2m 34s
test-docs	1m 30s
armv5te-unknown-linux-musleabi	27s
test-versions (stable)	1m 52s
wasm32-unknown-unknown	40s
test-versions (beta)	1m 31s
	17m 58s

Provide feedback