+
+* manual configuration
+
+ - edit `inc/settings.php.in` and copy it to `inc/settings.php`
+ - upload syp to your webserver
+ - open http://yoururl.com/install.php with your web browser to finalize
+ installation (database tables creation).
+
+* automatic configuration
+ - upload syp to your webserver
+ - open http://yoururl.com/install.php with your web browser and follow
+ instructions.
+
+For automatic configuration to work, `inc/` directory needs to be writeable. Use
+`chmod` to set the appropriate directory permissions. If in doubt, `chmod` to
+`0777`. Alternatively, you can use manual method.
+
+Some advanced configuration options are not available with automatic method. If
+you need to set those options, use manual configuration.
+
+Upgrade
+------------
+- uncompress new version of syp
+- upload uncompressed version to your server
+- open http://yoururl.com/upgrade.php with your web browser
+
+co-administrators
+-----------------
+It is possible to allow other people to upload and manage
+pictures/descriptions. In admin interface, select "Add an co-administrator"
+and fill informations (user name and password). Then, you need to communicate
+to your user its username and password. He/She will be able to modify this
+password afterward. Only admin can add new users.
+
+Other co-administrators will be able to add markers, and delete/modifiy them.
+They cannot modify markers they have not created. admin is the only user
+allowed to manage markers of other users. If you plan to have several
+co-administrators, you may want to create a normal user for yourself, and use
+it to manage your markers. You will then only use admin account when really
+needed.
+
+Currently, SYP does not allow
+
+Custom CSS
+----------
+You can define your own css rules by creating custom css files:
+- `media/syp_custom.css` for user interface
+- `media/admin_custom.css` for admin interface
+Those files are sourced after all other css files. So, rules defined in those
+custom files will override other rules.