turborepo

1a82126b - feat: use @repo/ pattern in `math-helpers` example, consistent with "getting started" and starter repo (#7911)

feat: use @repo/ pattern in `math-helpers` example, consistent with "getting started" and starter repo (#7911) ### Description This commit uses the `@repo/` pattern in `math-helpers` example, consistent with the `@repo/` pattern used in the [getting started](https://turbo.build/repo/docs/getting-started/create-new) page and the starter repos. ### Testing Instructions n/a, documentation change Please verify that - I have prefixed the package names correctly with `@repo/` - I did not prefix any folder names by accident!