Minor reformatting

Author: JJ

doc/Type/Iterator.pod6

@@ -413,10 +413,10 @@ if the iterator got exhausted at any point:
 The Iterator role implements this method as calling C<skip-at-least> and
 then calling C<pull-one> if it was not exhausted yet.
 
-=head1 Predictive Iterators
+=head1 Predictive iterators
 
-Please see the L<PredictiveIterator> role if your Iterator can know how
-many values it can still produce without actually producing them.
+Please see the L<PredictiveIterator> role if your C<Iterator> can know
+how many values it can still produce without actually producing them.
 
 =end pod