The original pdf files of each chapter were scanned, so the versions in this...

The original pdf files of each chapter were scanned, so the versions in this scans subdirectory are pixel-based and not searchable.

chapters/scans/README.md

+The original pdf files of each chapter were scanned, so the versions in this
+scans subdirectory are pixel-based and not searchable.
\ No newline at end of file