Mention that Q(…) won't work either.

Author: samcv

doc/Language/quoting.pod6

@@ -25,11 +25,12 @@ possible.
 
 Some delimiters are not allowed immediately after C<Q>',
 C<q> or C<qq>, such as L<identifiers|language/syntax#Identifiers>.
-Common ones include C<'> and C<->.
+Common ones include C<( )>, C<'> and C<->.
 
 =for code :allow<B>
 B<Q'>this won't work!B<'>
-B<Q '>this is fineB<'>
+B<Q(>this won't work either!B<)>
+B<Q (>this is fineB<)>
 
 =for code :allow<B>
 Q<Make sure you B«<»matchB«>» opening and closing delimiters>