Fix clippy/rustdoc in lrpar

Author: ratmice

lrpar/src/lib/ctbuilder.rs

@@ -58,7 +58,7 @@ struct CTConflictsError<StorageT: Eq + Hash> {
 /// and the inner value for `Some(inner_value)`.
 ///
 /// This wrapper instead emits both `Some` and `None` variants.
-/// See: https://github.com/dtolnay/quote/issues/20
+/// See: [quote #20](https://github.com/dtolnay/quote/issues/20)
 struct QuoteOption<T>(Option<T>);
 
 impl<T: ToTokens> ToTokens for QuoteOption<T> {