adjust selector for rare case where articles are replaced by divs

as per issue kevinzg#172

facebook_scraper/page_iterators.py

@@ -71,7 +71,7 @@ def __init__(self, response: Response):
 
     def get_page(self) -> Page:
         raw_page = self.get_raw_page()
-        raw_posts = raw_page.find('article[data-ft]') # Select only articles that have the data-ft attribute
+        raw_posts = raw_page.find('article[data-ft],div.async_like[data-ft]') # Select only articles that have the data-ft attribute
 
         if not raw_posts:
             logger.warning("No raw posts (<article> elements) were found in this page.")