Add upperline demonstration

colors/main.cpp

@@ -40,6 +40,12 @@ int main() {
 		}
 	}
 
+	cout << endl << "Upperline" << endl;
+	cout << endl << "Some text" << endl;
+	cout << "\033[0;53m";
+	cout << endl << "Some text" << endl;
+	resetColor();
+
 	cout << "End." << endl;
 
 	return 0;