fix: rss reader entry content attr not found bug (#435)

Author: bborn

examples/data_connectors/WebPageDemo.ipynb

@@ -182,8 +182,7 @@
     "from gpt_index import GPTListIndex, RssReader\n",
     "\n",
     "documents = RssReader().load_data([\n",
-    "    \"https://rss.nytimes.com/services/xml/rss/nyt/HomePage.xml\",\n",
-    "    \"https://roelofjanelsinga.com/atom.xml\"\n",
+    "    \"https://rss.nytimes.com/services/xml/rss/nyt/HomePage.xml\"\n",
     "    ])\n",
     "\n",
     "index = GPTListIndex(documents)\n",

gpt_index/readers/web.py

@@ -248,7 +248,7 @@ def load_data(self, urls: List[str]) -> List[Document]:
         for url in urls:
             parsed = feedparser.parse(url)
             for entry in parsed.entries:
-                if entry.content:
+                if "content" in entry:
                     data = entry.content[0].value
                 else:
                     data = entry.description or entry.summary