Portfolio step 14 part 2 - slider with jquery


in rails course , portfolio step 14 part 2

I don't know what to do on this part
I need more explanation here with examples
it says that i should copy something from somewhere and paste it in another place ?
completely confused....

--------------------------------- this is the part
2. Add a main section. In this section, use jQuery and the Unslider library to add a slideshow to top of the portfolio page. Follow the code examples in the Unslider docs to add the slideshow. Choose three screenshots of apps you've built and use these images in the slideshow.

Save your JavaScript code to app/assets/javascripts/, and then include it the page as shown here