-The character set is in the file `charset-15.txt'. When you enter new
-characters, they are added there. If you do this, please email me
-your charset file (ijackson@chiark.greenend.org.uk) so that I can
-include your contributions in future versions. This will also let me
-check that they seem right :-).
+Enabling interactive character set update
+-----------------------------------------
+
+Now that you have read this document, you should rerun your OCR job
+with the --edit-charset option. So
+ ./ypp-commodities --edit-charset
+In future, always run it with the --edit-charset option.
+
+With --edit-charset, when the OCR finds characters it does not
+understand, it will put up an OCR resolution query window. This will
+display the part of the text it is having trouble with, showing where
+it has got to, and allow you to edit the character set dictionary it
+uses for recognising the text.
+
+The process is subtle and it is important to understand the way the
+machinery works, and the possible mistakes you can make, before
+answering the program. So *Please read this documentation*, which
+explains the meaning of the entries you make.
+
+The character set updates you make will by default be submitted to my
+server so that they can be checked by me and shared with other users.
+See README.privacy.
+
+If you need help please ask me (ijackson@chiark.greenend.org.uk, or
+Aristarchus on Midnight in game if I'm on line, or ask any pirate of
+the crew Special Circumstances if they happen to know where I am
+and/or can get in touch).