docs(tutorial): Be explicit on what Accumulate is

src/_tutorial/chapter_5.rs

@@ -200,7 +200,7 @@
 //! ```
 //!
 //! If you look closely at [`repeat`], it isn't collecting directly into a [`Vec`] but
-//! [`Accumulate`] to gather the results. This lets us make more complex parsers than we did in
+//! anything that implements the [`Accumulate`] trait to gather the results. This lets us make more complex parsers than we did in
 //! [`chapter_2`] by accumulating the results into a `()` and [`recognize`][Parser::recognize]-ing the captured input:
 //! ```rust
 //! # use winnow::prelude::*;