Feature Request: it would be cool if the category-meta file could apply to "Main articles" too

[Gaibhne]

https://github.com/gilbitron/Raneto/blob/master/example/content/usage/category-meta.md works super well for categories, but not for the main directory. It makes sense, some of the options in there don't make much sense for the main category, but I wanted to rename my main with a title: Unsorted Articles, and it wouldn't work. So that would be a nice addition :D