Update the blog data
    
    I think we're supposed to get some automated process on this file.
    But we don't have it now. I used an online tool to convert RSS to
    JSON and copied the result to this file. You can too:
    
    https://rss2json.com/#rss_url=https%3A%2F%2Fblog.centos.org%2Ffeed%2F