rss_feeds.py: data() docstring

Attempt to explain why we override this function.
I...actually don't understand why we do, so this explanation may be wrong.
It seems like we could have fit within the BaseDocketReport framework
of returning our information as `docket_entries` rather than `data` but
maybe I'm missing something.

juriscraper/pacer/rss_feeds.py

@@ -98,8 +98,8 @@ def _parse_text(self, text):
 
     @property
     def data(self):
-        """Override this to create a list of docket-like objects instead of the
-         usual dict that is usually provided by the docket report.
+        """Return a list of docket-like objects instead of the usual dict that
+         is usually provided by the BaseDocketReport superclass.
         """
         if self._data is not None:
             return self._data