Update readme [ci skip]

README.rst

@@ -156,6 +156,29 @@ suited for your deployment.
   * Edit the post via djangocms frontend by adding / editing plugins
   * Publish the blog post by flagging the "Publish" switch in the blog post admin
 
+Configurable permalinks
++++++++++++++++++++++++
+
+Blog comes with four different styles of permalinks styles:
+
+* Full date: ``YYYY/MM/DD/SLUG``
+* Year /  Month: ``YYYY/MM/SLUG``
+* Category: ``CATEGORY/SLUG``
+* Just slug: ``SLUG``
+
+As all the styles are loaded in the urlconf, the latter two does not allow to have CMS pages
+beneath the page the blog is attached to. If you want to do this, you have to override the default
+urlconfs by setting somethik like the following in the project settings::
+
+    BLOG_PERMALINKS_URLS = {
+        'full_date': r'^(?P<year>\d{4})/(?P<month>\d{1,2})/(?P<day>\d{1,2})/(?P<slug>\w[-\w]*)/$',
+        'short_date': r'^(?P<year>\d{4})/(?P<month>\d{1,2})/(?P<slug>\w[-\w]*)/$',
+        'category': r'^post/(?P<category>\w[-\w]*)/(?P<slug>\w[-\w]*)/$',
+        'slug': r'^post/(?P<slug>\w[-\w]*)/$',
+    }
+
+And change ``post/`` with the desired prefix.
+
 Templates
 +++++++++