Grammar nit

Co-authored-by: Gino Valente <[email protected]>

crates/bevy_reflect/src/reflect.rs

@@ -389,7 +389,7 @@ where
 /// meaning any type which implements `Reflect` implements `PartialReflect` by definition.
 ///
 /// It's recommended to use [the derive macro] rather than manually implementing this trait.
-/// Doing so will automatically implement this trait, [`PartialReflect`] and many other useful traits for reflection,
+/// Doing so will automatically implement this trait, [`PartialReflect`], and many other useful traits for reflection,
 /// including one of the appropriate subtraits: [`Struct`], [`TupleStruct`] or [`Enum`].
 ///
 /// See the [crate-level documentation] to see how this trait can be used.