Any pages that match the specified [[PageSpec]] (in the example, any
[[SubPage]] of "blog") will be part of the blog, and the newest 10
-of them will appear in the page.
+of them will appear in the page. Note that if files that are not pages
+match the [[PageSpec]], they will be included in the feed using RSS
+enclosures, which is useful for podcasting.
The optional `rootpage` parameter tells the wiki that new posts to this blog
should default to being [[SubPage]]s of "blog", and enables a form at the