Dispel puzzle caused by rakudo REPL bug

doc/Language/variables.pod6

@@ -197,7 +197,11 @@ only depends on the C<$>.
 X<|$*>
 
 Dynamic variables are looked up through the caller, not through the outer
-scope. For example:
+scope. Look at the example below.
+
+I<Note:> So far, if you use rakudo perl6, the example below cannot execute
+correctly in REPL. You can try it by copy-pasting it into a file, then
+excute the file.
 
     =begin code
     my $lexical   = 1;