Exercise 1. Copy ct.html to a new file named ct_Ex1.html. Copy ct.js to a new file named ct_Ex1.js. Launch ct_Exi.html with your browser and enter two numbers and click on the "enter" button, nothing! happens. In this exercise, you would modify the code such that it runs properly: Make three changes to ct_Ex1.html, as follows: 1) Connect it to ct_Ex1.js by adding a link in the head element. 2) Add an event to the button such that when it's clicked you handle that event by the add() function in your js file. 3) Add your name to the list of authors of this page. Launch ct_Exd.html with your browser and enter 15 and 9. You should see the following result sum of 2 numbers Tests Second