Fix Poll.question docstring

discord/poll.py

@@ -426,7 +426,7 @@ def __repr__(self) -> str:
 
     @property
     def question(self) -> str:
-        """:class:`str`: Returns this poll answer question string."""
+        """:class:`str`: Returns this poll's question string."""
         return self._question_media.text
 
     @property