fix syntax error, missing comma

src/feed.py

@@ -59,7 +59,7 @@ class Article:
         published = datetime(*entry.published_parsed[0:-2]) if published_parsed else None
 
         return cls(
-            guid=entry["guid"]
+            guid=entry["guid"],
             title=entry.get("title"),
             description=entry.get("description"),
             url=entry.get("link"),