Making the LED blink faster

The purpose of this assignment was to make the led light in the circuit blink faster. In order to first build the circuit, I used the following :
1. Arduino UNO Microcontroller
2. LED Light
3. A red,red,brown,gold resistor
4. A breadboard
5. Two wires (One from the ground to the board and one from the board to pin 13)
As shown in the figure and as directed in the instructions, I built the circuit and ran the blink.txt file containing the Arduino code. In order to make the LED blink faster, I changed the delay() argument from 1000 to 500 ms essentially reducing the interval between two blinks, thus making the LED blink faster.