RE: Headings and blue text for sections 2 and 3

> The BP is not just about xml:lang.  That's the prime reason for changing
> the
> heading.  Indeed, Felix's mention of metadata labelling adds yet another
> reason to remove xml:lang from the heading.
>
> Also, the headings are designed to reflect a general task which the reader
> should be interested in, without proposing the solution.  Natural language
> labelling is that task - introducing xml:lang is introducing the solution
> into the question.
>
> No change made.

Fine by me.

Felix