Broadened scope of admin docs

git-svn-id: http://code.djangoproject.com/svn/django/trunk@103 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/admin_css.txt

-======================
-Django Admin CSS Guide
-======================
+======================================
+Customizing the Django admin interface
+======================================
 
 Django's dynamic admin interface gives you a fully-functional admin for free
 with no hand-coding required. The dynamic admin is designed to be