Specify whether to generate hyperlink titles.
In HTML, hyperlink titles are specified using title
attribute, like this:
<a ... title="link tooltip text"> ... </a>
Such tooltips can be used to quickly see additional information about the linked text. For instance, when the link appears on a Java class name, its tooltip may reveal what kind of class it is (e.g. ordinary class, interface, enum or annotation type) and which package it belongs to.