Fix CI failure due to a documentation link.

Author: daira

zcash_client_backend/src/fees.rs

@@ -392,7 +392,7 @@ pub trait ChangeStrategy {
         feature = "transparent-inputs",
         doc = "`ephemeral_parameters` can be used to specify variations on how balance
                and fees are computed that are relevant to transactions using ephemeral
-               transparent outputs; see [`EphemeralParameters::new`]."
+               transparent outputs; see `EphemeralParameters::new`."
     )]
     #[cfg_attr(
         not(feature = "transparent-inputs"),