Extjs 5 : Set Up for Dynamic Web Project

I want to upgrade to Extjs 5, right now i am working on Extjs 4.

In order to use Extjs, i added selective folder and files and not complete Extjs folder.(i.e resources folder and two other files)

But now i want to upgrade to Extjs 5, But in SDK of Estjs 5, resources folder is missing.

Please help me out with the set-up of project.