fix typo

Author: coke

doc/Language/5to6-nutshell.pod6

@@ -261,7 +261,7 @@ first $coderef, @values, :k;
 
 =begin item
 C<&foo;> I<and> C<goto &foo;> I<for re-using the caller's argument list /
-replacing the caller in the call stack>. Perl 6 can use either L<C<callsame>|/language/functions#index-entry-dispatch_callsame> for re-dispatching or L<C<nextsame>|/language/functions#index-entry-dispatch_nextsame> and L<C<nextwitch>|/language/functions#index-entry-dispatch_nextwith>, which have no exact equivalent in Perl 5.
+replacing the caller in the call stack>. Perl 6 can use either L<C<callsame>|/language/functions#index-entry-dispatch_callsame> for re-dispatching or L<C<nextsame>|/language/functions#index-entry-dispatch_nextsame> and L<C<nextwith>|/language/functions#index-entry-dispatch_nextwith>, which have no exact equivalent in Perl 5.
 
 =begin comment
     # TODO: Suggest .nextsame and .nextwith once they've been implemented in Rakudo.