Changed subreddit in text and code to use test subreddit in quickst…

…art example

(cherry picked from commit praw-dev/praw@e49393d)

AUTHORS.rst

@@ -29,6 +29,7 @@ Documentation Contributors
 - Jason Haines `@jghaines <https://github.com/jghaines>`_
 - Kaif `@kaif-00z <https://github.com/kaif-00z>`_
 - Johanna Rührig `@TheRealVira <https://github.com/TheRealVira>`_
+- Sam Snarr `@sss-ng <https://github.com/sss-ng>`_
 - Add "Name <email (optional)> and github profile link" above this line.
 
 PRAW Author

docs/getting_started/quick_start.rst

@@ -92,7 +92,7 @@ Just like that, you now have a read-only :class:`.Reddit` instance.
     # Output: True
 
 With a read-only instance, you can do something like obtaining 10 "hot" submissions from
-``r/learnpython``:
+``r/test``:
 
 .. code-block:: python