Correct spelling error in getting_started.rst

docs/getting_started.rst

@@ -52,7 +52,7 @@ the following code returns to us an User model::
    # Get the User object for twitter...
    user = tweepy.api.get_user('twitter')
 
-Models container the data and some helper methods which we can then
+Models contain the data and some helper methods which we can then
 use::
 
    print user.screen_name