add minijinja templating example (#2523) #4375

Job	Run time
check	1m 5s
cargo-hack	3m 19s
cargo-public-api-crates (axum)	37s
check-docs	34s
cargo-public-api-crates (axum-core)	21s
cargo-deny check (advisories)	22s
cargo-public-api-crates (axum-extra)	42s
cargo-deny check (bans licenses sources)	23s
cargo-public-api-crates (axum-macros)	20s
dependencies-are-sorted	21s
Spell Check with Typos	4s
test-versions (stable)	2m 13s
test-nightly	2m 27s
test-versions (beta)	1m 44s
test-msrv	6m 8s
test-docs	1m 45s
armv5te-unknown-linux-musleabi	43s
wasm32-unknown-unknown	28s
	23m 36s

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