Describe the bug
The link to the async_read in the parquet 9.0.2 docs is not a link when published on docs.rs:

To Reproduce
https://docs.rs/parquet/9.0.2/parquet/
Expected behavior
The link should be active.
Additional context
Came in via #1253
I think the issue may be that the async feature is not activated by default.