Open in guiguts and give sensible name

Guiguts gets very confused if you rename anything outside of guiguts.
Always open in guiguts and then do file save as.
Search and process block markup over page boundaries
Same for inline markup

There wasn't any inline markup over page boundaries in this book.
Check block markup (replace with /P or /F if required)

While I'm looking through the block markup I move anything that
shouldn't interrupt it to the end. For example the footnotes and page
numbers get moved to the end of a poem.