Correct minor typos

praw/models/reddit/multi.py

@@ -71,16 +71,15 @@ def stream(self):
         """Provide an instance of :class:`.SubredditStream`.
 
         Streams can be used to indefinitely retrieve new comments made to a
-        subreddit, like:
+        multireddit, like:
 
         .. code:: python
 
            for comment in reddit.multireddit('spez', 'fun').stream.comments():
                print(comment)
 
         Additionally, new submissions can be retrieved via the stream. In the
-        following example all submissions are fetched via the special subreddit
-        ``all``:
+        following example all new submissions to the multireddit are fetched:
 
         .. code:: python