+* `feedpages` - A [[PageSpec]] of inlined pages to include in the rss/atom
+ feeds. The default is the same as the `pages` value above, and only pages
+ matches by that value are included, but some of those can be excluded by
+ specifying a tighter [[PageSpec]] here.
+* `feedshow` - Specify the maximum number of matching pages to include in
+ the rss/atom feeds. The default is the same as the `show` value above,
+ and it cannot be larger than that value, but can be set to a smaller
+ value to avoid producing excessively large feed files.