Automation: Step 1, or Cake, anyone?

This is really more of an "inb4" pull request.  Also an attempt to start some discussion as to what people want.

I've hacked up the dumbest, quickest, most straightforward scripts to do two things:

1. Automatically generate a table of contents/index of the recipes in the repository
2. Generate an index of recipes grouped by ingredient.  (at the moment the ingredient parsing/normalization is still missing)

There are two todos for the table of contents (TOC hence).  Alternative sorting for the TOC (rather than alphanumeric) so as to preserve the current order of the index.  The other is some way of tagging or otherwise indicating facts about recipes (like whether they're vegetarian friendly) so that info can be communicated through the TOC.

I'm particularly interested in opinions on the last point.  Any suggestions? :D