The upstream version of the `README.md` differs by this change, so
synchronize it.
The reason that this wasn't in the original sync patch is that this was
a late change that I didn't port back to the kernel repo, since it was
generated by `cargo rdme`.
Link: https://lore.kernel.org/all/20250416225002.25253-1-benno.lossin@proton.me
Signed-off-by: Benno Lossin <benno.lossin@proton.me>