Inaccuracy in reported content model for <hgroup> | <p> is actually allowed

[uxFeranmi]

As the title says, the content model for <hgoup> allows for any number of <p> tags before and/or after a single heading tag (h1-h6).

The caninclude page for this comparison suggests that the only renderable content inside of an <hgroup> is the heading element (h1-h6). This is obviously wrong, since that would mean the <hgroup> literally has no purpose. If there is no subtitle content allowed, the purpose of the <hgroup> is defeated.

A quick look at the WHATWG section (4.3.7) on hgroup confirms this. It is made clear that the <p> tag is allowed.

Content model: Zero or more <p> elements, followed by one h1, h2, h3, h4, h5, or h6 element, followed by zero or more <p> elements, optionally intermixed with script-supporting elements.

The caninclude page for this should be updated to accurately include this information.