Add suggestions from nine++ and smls++ (Tuple)

S07-glr-draft.pod

@@ -207,6 +207,11 @@ so there's an argument to be made that it should be called C<List>.
 C<Seq> might be another candidate name, although I'm tentatively using
 it to represent generated/iterable sequences below.
 
+Update 2015-06-23:  C<Tuple> is suggested as a possible name for
+immutable lists.  smls++ also suggests that perhaps we don't need
+a mutable list -- perhaps (immutable) C<List> and (mutable, itemizing)
+C<Array> are sufficient.
+
 =item *
 
 The C<for> statement will no longer flatten the value provided to it.