less accidental markdown refs #2022

And also adds reference to anon refs #1655

doc/Type/Routine.pod6

@@ -2,7 +2,7 @@
 
 =TITLE class Routine
 
-=SUBTITLE Code object with its own lexical scope and `return` handling
+=SUBTITLE Code object with its own lexical scope and C<return> handling
 
     class Routine is Block { }
 
@@ -43,6 +43,8 @@ that one will be called. For example:
 In this example, the C<multi> without C<is default> was called because it was
 actually narrower than the C<Sub> with it.
 
+Subroutines can also be declared C<anon>. See the L<documentation on the C<anon> declarator|/language/variables#The_anon_Declarator> for more information.
+
 =head1 Methods
 
 =head2 method name