[rfc-i] more requirements

[Patrick Linskey (plinskey)]

I wrote:

> I'm joining the party late here, but my assumption from these threads
> is that the goals of a new format include:
> 
> - human-editable
> - easily machine-readable, including semantic awareness (implies
> transformable)
> - single-file archive format
> - Unicode support
> - suitable for revision control systems

Here's another one that came up on another thread earlier today:

- Canonical stable locations for final output, so that other RFCs and
third parties can link to documents at least, and ideally also sections,
figures, etc.

-Patrick