Fix and improve MSAA documentation (#16196) #51932

Job	Run time
check-bevy-internal-imports	4s
build (windows-latest)	6m 19s
check-doc	9m 31s
check-missing-examples-in-docs	44s
build (ubuntu-latest)	2m 44s
ci	2m 56s
build (macos-latest)	2m 14s
miri	10m 29s
run-examples-macos-metal	5m 12s
toml	2m 0s
typos	8s
check-missing-features-in-docs	29s
markdownlint	1m 4s
check-compiles-no-std	37s
check-compiles	4m 45s
msrv	1m 0s
build-wasm	50s
build-wasm-atomics	1m 37s
	52m 43s

Provide feedback