Part 2: you are given ct.html, ct.css, ct.js files. Reading these files carefully in order to enhance your learning before doing the following exercises. funt number od naber 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_Ex1.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