Adds better example for Any.pick using Ranges

Eliminates the class example too; refs #1731

Author: JJ

doc/Type/Any.pod6

@@ -610,7 +610,8 @@ L«C<List.roll>|/type/List#routine_roll» on it.
     say $m.roll; # OUTPUT: «(ß ß þ ß þ)␤»
 
 C<$m>, in this case, is converted into a list and then a (weighted in
-this case) dice is rolled on it. See also L<C<List.roll>|/type/List#routine_roll> for more information.
+this case) dice is rolled on it. See also
+L<C<List.roll>|/type/List#routine_roll> for more information.
 
 =head2 method pick
 
@@ -623,8 +624,9 @@ Coerces the invocant to a C<list> by applying
 its L«C<.list>|/routine/list» method and uses
 L«C<List.pick>|/type/List#routine_pick» on it.
 
-    say Any.pick;    # OUTPUT: «(Any)␤»
-    say Any.pick(5); # OUTPUT: «((Any))␤»
+    my Range $rg = 'α'..'ω'
+    say $rg.pick(3); # OUTPUT: «(β α σ)␤»
+
 
 =head2 method skip