src/chapters/hooks.xml

<?xml version="1.0" encoding="UTF-8"?>

<chapter xml:id="events-hooks" 
    xmlns="http://docbook.org/ns/docbook" version="5.0" xml:lang="en"
    xmlns:xi="http://www.w3.org/2001/XInclude">

    <title>Event handlers</title>

</chapter>