03f0ce04cc
This parses the guide section in the content.opf for text/start references and jumps to this on first open of the book. Currently, this behavior will be repeated in case the reader manually jumps to Chapter 0 and then re-opens the book. IMO, this is an acceptable edge case (for which I couldn't see a good fix other than to drag a "first open" boolean around). --------- Co-authored-by: Sam Davis <sam@sjd.co> Co-authored-by: Dave Allie <dave@daveallie.com>