Moves the card sorting logic from index.php into the datavbase to allow easy modification based on what type of data is being served from the db.

README.md

@@ -3,7 +3,7 @@
 This is a single-file php application for training writing using flash cards sorted into boxes.
 The UI is optimized for mobile viewing. Added cards are automatically sorted into different boxes based on successfully typing in the correct answer or not.
 
-The provided database contains cards for learning German for english speakers but it can be adapted to learn anything. Editing is also possible throug the UI (except for word classes) so adding an empty database is also an option. Please tweak db.sql before creating the sqlite3 database.
+The provided database contains cards for learning German for english speakers but it can be adapted to learn anything. Editing of words is also possible throug the UI adding an empty database is also an option. To change the flow of boxes, add/remove boxes or add/remove word classes, please tweak db.sql before creating the sqlite3 database.
 
 ## Why build it?
 I wrote this small application to help my wife learn german but then thought of publishing it in case someone else is looking for a simple solution. I know there are plenty of language learning programs out there but i wanted something offline and with boxes the cards are sorted into the traditional way. Contributions and improvements are most welcome.