Hash: clarify the looping over sorted keys example

doc/Type/Hash.pod

@@ -110,16 +110,16 @@ which prints
 and is 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.  The output of this operation is a L<Seq>, the
-items of which need to be passed into the C<for> loop's block as arguments,
-which is why you will find the key/value pairs wrapped in parentheses. The signature
-of the point block could also be a single argument.
+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.
 
-  for %vowels.kv -> $vowel {
-    say $vowel;
-  }
+An alternative solution is to flatten the resulting list.  Then the key/value
+pairs can be accessed in the same way as with plain C<.kv>:
 
-This would print the list one line at a time.
+    my %vowels = 'a' => 1, 'e' => 2, 'i' => 3, 'o' => 4, 'u' => 5;
+    for %vowels.sort(*.key)>>.kv.flat -> $vowel, $index {
+      "$vowel: $index".say;
+    }
 
 
 =head2 Object hashes and type constraints