fix CTRL+C not showed in keys example

Author: staxfur

examples/keys.cpp

@@ -10,7 +10,7 @@ using Term::Terminal;
 
 int main() {
  try {
- Terminal term(true, true, false, false);
+ Terminal term(true, true, true, false);
  int rows{}, cols{};
  Term::get_term_size(rows, cols);
  std::cout << "Dimension:" << cols << " " << rows << std::endl;