chore(examples): mark core supported examples #3628

Job	Run time
Rust lints	1m 41s
Turborepo rust check	1m 27s
Turborepo Examples	6m 46s
Turborepo Integration (ubuntu-latest)	1m 19s
Turborepo Rust testing on ubuntu	1m 47s
Turborepo Integration (macos-13)	2m 55s
Turborepo Rust testing on macos	6m 35s
Turborepo Integration (windows-latest)	3m 39s
Turborepo Rust testing on windows	12m 41s
Turborepo Test Summary	1s
Cleanup / cleanup	4s
	38m 55s

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