add more references to ressource_route(), etc.

[greg-minshall]

hi. i'm converting from Rook::, and was looking for a replacement for its Static and File constructs. i didn't see any, so worked on implementing my own.

i had noticed two lower-case-starting elements of routr::, and had assumed they were uninteresting. indeed, they are not!

so, just a suggestion to mention their existence on the web page, man pages, etc. everywhere you can. maybe in both ?Route and ?RouteStack?

(now to go try to make it work for me... :) cheers.