Document sub rotor

doc/Type/List.rakudoc

@@ -1172,7 +1172,7 @@ L<Range|/type/Range> constructed with C<0..^$from>:
     # (2 0 1)
     # (2 1 0)
 
-=head2 method rotor
+=head2 routine rotor
 
     method rotor(*@cycle, Bool() :$partial --> Seq:D)
 
@@ -1207,6 +1207,19 @@ Combining multiple cycles and C<:partial> also works:
 
 See L<this blog post for more elaboration on rotor|http://blogs.perl.org/users/zoffix_znet/2016/01/perl-6-rotor-the-king-of-list-manipulation.html>.
 
+    multi sub rotor(Int:D $batch, \source, Bool() :$partial --> Seq:D)
+    multi sub rotor(*@cycle, \source, Bool() :$partial --> Seq:D)
+
+Available as of 6.e language version (early implementation exists in Rakudo
+compiler 2022.02+).
+
+    say rotor(3, 'a'..'h').join('|');             # OUTPUT: «a b c|d e f␤»
+    say rotor(3, 'a'..'h', :partial).join('|');   # OUTPUT: «a b c|d e f|g h␤»
+    say rotor(2 => 1, 'a'..'h').join('|');        # OUTPUT: «a b|d e|g h␤»
+    say rotor(3 => -1, 'a'..'h').join('|');       # OUTPUT: «a b c|c d e|e f g␤»
+    say rotor(1 => 1, 3 => -1, 'a'..'h', :partial).join('|');
+    # OUTPUT: «a|c d e|e|g h␤»
+
 =head2 method batch
 
     multi method batch(Int:D $batch --> Seq)