fix(doc): unlinked ref

Author: miraclx

src/prompts/input.rs

@@ -95,7 +95,7 @@ impl<T> Input<'_, T> {
 
     /// Disables or enables the default value display.
     ///
-    /// The default behaviour is to append [`default`] to the prompt to tell the
+    /// The default behaviour is to append [`default`](#method.default) to the prompt to tell the
     /// user what is the default value.
     ///
     /// This method does not affect existance of default value, only its display in the prompt!