Ready for final review - WG 6.4 Ch 3

Revisions to WG 6.4 Chapter 3 Working with Text Advanced have been made and
are in the Feedback folder ready for final review. I updated the
spreadsheet.
Kind regards,
Toni

Thanks, Toni. I found some tracked changes in the file and removed
them. I've replaced the file in the Feedback folder.
Jean