Fix broken links

CREDITS

@@ -86,6 +86,9 @@ E: davidnmfarrell@gmail.com
 N: David H. Adler
 E: dha@pobox.com
 
+N: David M. Cawthon
+E: dmc00@fastmail.com
+
 N: Dmitriy Olshevskiy
 E: olshevskiy87@bk.ru
 

doc/Language/setbagmix.pod6

@@ -79,15 +79,16 @@ one C<Set> is a subset of another C<Set>.
 
 These infixes can be written using the UTF-8 character that represents the
 function (like L<∈|/routine/∈>, or L<∪|/routine/∪>), or they can be written with an
-equivalent ASCII version (like L<(elem)|/routine/(elem)> or L<(|)|/routine/(|)>).
+equivalent ASCII version (like L<(elem)|/routine/(elem)> or L<(E<VERTICAL
+LINE>)|/routine/(|)>).
 
 Most of the time, explicitly using C<Set> objects with these infixes is
 unnecessary. All of the infix operators will work on any objects of type
 L<Any|/type/Any> for its arguments (e.g., L<List|/type/List>,
 L<Array|/type/Array>, L<Mix|/type/Mix>, etc.) and coerce them to C<Set>
 where needed.
 
-In some cases, if the type of an argument is a L<Bag/type/Bag>, the infix
+In some cases, if the type of an argument is a L<Bag|/type/Bag>, the infix
 operator will behave in a different but analogous way to the way it would
 behave with only C<Set> arguments.