^Managing Packages with Npm - Add a Description to Your package.json^

Can someone explain what i am going to do in these exercises please?I can’t understand what exactly i am going to do.

If you read the instructions carefully at the beginning of curriculum, you will see that there is a link to a glitch project. It provides a template where you can add a file or modify files. Once you think you finished a challenge. Simply share a public url by cliking top left menu bar and paste the url in the exercise.