code: def get_article_urls(url):
      
      doc = html.parse(url).getroot()
      for div in doc.cssselect("div.mw-search-result-heading"):
          href = div.cssselect("a")[0].get('href')
          if ":" in href:
              continue # skip Category: links
          href = urljoin(url, href)
          yield href
docs: Return the articles from a page
      Technically, look for a div with class mw-search-result-heading
      and get the first link from this div