Crawl javascript enabled website with Scrapy

I already have a working Scrapy code (attached) to crawl a site, but when I follow a link to load more articles, articles are not loaded. May be javascript is enabled on the website. You just need to add few lines of code so that more articles will be loaded on javascript enabled button links. Please take a look at the attached code and let me know if you can tackle this and we will start a project. Thanks.