Commit after each question.

1. Link to script.js in index.html

2. View comments in script.js for the rest of this section's questions.

1. In index.html, link to a jQuery CDN.

2. Link to stoplight.js in index.html

3. Create an event listener(s) so that when you click on a light, it turns to its respective color (i.e., top light turns red).

4. If you click a light that is already on, it turns off.

5. If you click yellow, it switches to red after two seconds.

6. Make it so that only one light can be turned on at a time (e.g., both red and yellow cannot be on at the same time).