In section trait is nodal of typesystem.rakudoc, add link to definition of term hyperoperator (#4638)

Author: schultzdavid

doc/Language/typesystem.rakudoc

@@ -326,7 +326,7 @@ C<:&attr-with-code-in-it>, and so on.
 
 =head3 trait C<is nodal>
 
-Marks a L<C<List>|/type/List> method to indicate to hyperoperator to not descend into inner
+Marks a L<C<List>|/type/List> method to indicate to L<hyperoperators|/language/operators#Hyper_operators> to not descend into inner
 L<C<Iterable>|/type/Iterable>s to call this method. This trait generally isn't
 something end users would be using, unless they're subclassing or augmenting
 core L<C<List>|/type/List> type.