Adding explanation for loading additonal audio formats to example #40817

Job	Run time
check-cfg	1m 44s
check-doc	8m 15s
check-bevy-internal-imports	4s
build (windows-latest)	5m 4s
check-missing-examples-in-docs	28s
build (ubuntu-latest)	2m 11s
ci	1m 58s
build (macos-latest)	8m 21s
miri	5m 34s
run-examples-macos-metal	4m 3s
typos	7s
toml	1m 51s
check-missing-features-in-docs	33s
markdownlint	1m 11s
check-compiles	4m 54s
msrv	1m 10s
build-wasm	1m 2s
build-wasm-atomics	1m 25s
	49m 55s

Provide feedback