ref: a58f0517af4ed0a30b1a6d2f239d796eaf059cb1
dir: /sample/ebooksrc/META-INF/container.xml/
<?xml version="1.0" encoding="UTF-8"?>
<container
xmlns="urn:oasis:names:tc:opendocument:xmlns:container"
version="1.0">
<rootfiles>
<rootfile
full-path="content.opf"
media-type="application/oebps-package+xml"/>
</rootfiles>
</container>