RSS is a format that provides easy, free subscription to the contents of a web site.
For automatic downloading of news published in any of these sections, you can use an RSS aggregatoror your own browser to access the new contents.
If you use the reader, click on the icon of the section you are interested in, copy the link of the page that opens and follow instructions to add it to the RSS.
To use the browser, click on the icon and follow the instructions on your browser.
It´s easy. Try it!