Move default docs (#9638) #207

Job	Run time
build (windows-latest)	10m 29s
build (ubuntu-latest)	4m 24s
build (macos-latest)	7m 13s
check-bevy-internal-imports	5s
check-doc	15m 58s
check-missing-examples-in-docs	1m 0s
ci	4m 40s
miri	9m 20s
run-examples-on-windows-dx12	30m 0s
check-missing-features-in-docs	56s
markdownlint	1m 47s
check-compiles	6m 22s
build-wasm	1m 53s
msrv	2m 11s
	1h 36m 18s

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