Add minor fix

Author: uzluisf

doc/Language/hashmap.pod6

@@ -390,7 +390,7 @@ u: 5
 in alphabetical order as desired. To achieve this result, we sorted
 the hash of vowels by key (C<%vowels.sort(*.key)>) which we then ask for its
 keys and values by applying the C<.kv> method to each element via the unary
-C< >> > hyperoperator resulting in a L<List> of key/value lists.  To extract
+C«>>» hyperoperator resulting in a L<List> of key/value lists.  To extract
 the key/value the variables thus need to be wrapped in parentheses.
 
 An alternative solution is to flatten the resulting list.  Then the key/value