Merge pull request scrapy#1972 from mgachhui/1.1

Added Python 3.3+ to readme

Author: redapple

README.rst

@@ -40,7 +40,7 @@ http://scrapy.org
 Requirements
 ============
 
-* Python 2.7
+* Python 2.7 or Python 3.3+
 * Works on Linux, Windows, Mac OSX, BSD
 
 Install