Fix code example

Author: youtux

README.rst

@@ -51,7 +51,7 @@ An example test for a blog hosting software could look like this. Note that pyte
 
     # test_publish_article.py
 
-    from pytest_bdd import scenario, given, when, then
+    from pytest_bdd import scenarios, given, when, then
 
     # Load all the scenarios
     scenarios('publish_article.feature')