Fixed #4245 -- Added documentation about permission error on OS X. Th…

…anks, jacob@gridface.com and ubernostrum and others

git-svn-id: http://code.djangoproject.com/svn/django/trunk@6224 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/tutorial01.txt

@@ -41,6 +41,16 @@ From the command line, ``cd`` into a directory where you'd like to store your
 code, then run the command ``django-admin.py startproject mysite``. This
 will create a ``mysite`` directory in your current directory.
 
+.. admonition:: Max OS X permissions
+
+   If you're using Mac OS X, you may see the message "permission
+   denied" when you try to run ``django-admin.py startproject``. This
+   is because, on Unix-based systems like OS X, a file must be marked
+   as "exceutable" before it can be run as a program. To do this, open
+   Terminal.app and navigate (using the `cd` command) to the directory
+   where ``django-admin.py`` is installed, then run the command
+   ``chmod +x django-admin.py``.
+
 .. note::
 
     You'll need to avoid naming projects after built-in Python or Django