Fixed #8986 -- Fixed typo in install.txt. Thanks, rduffield

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8993 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/intro/install.txt

@@ -26,7 +26,7 @@ probably already have it installed.
 
 .. _jython: http://jython.org/
 
-You can verify that Python's installed py typing ``python`` from your shell; you should see something like::
+You can verify that Python's installed by typing ``python`` from your shell; you should see something like::
 
     Python 2.5.1 (r251:54863, Jan 17 2008, 19:35:17) 
     [GCC 4.0.1 (Apple Inc. build 5465)] on darwin