Document 2.15.7 nested reference and equation previews
Document grouped reference browsing in 2.15.6
Document source-preserving reference browser in development
Publish usage documentation for 2.15.5
Document development deployment and reference workflows
Document LaTeX references and row numbering for 2.15.4
Document saved books, reference insertion, index maintenance and diagram arrows
Move bilingual user guides from README into topic-based Wiki
Initial Home page