Add missing 'end code' to control structure page

Author: clarkema

doc/Language/control.pod6

@@ -96,9 +96,10 @@ class C {
 };
 my $c = C.new;                              │
 # OUTPUT: Fails and writes «I live␤I will never live!␤
+=end code
 
-This block will first run the first statement, and they C<die> printing the
-second statement; C<$c> will never get a value.
+This block will first run the first statement, and then C<die> printing the
+second statement. C<$c> will never get a value.
 
 =head1 X<Phasers|control flow,Phasers>