Bug#816159: www.debian.org: new introduction for blends page

On Sat, Mar 5, 2016 at 3:23 PM, Paul Wise wrote:
> On Tue, Mar 1, 2016 at 9:18 PM, Charles Plessy wrote:
>
>> maybe I am too much of a scientist, but I prefer when the first paragraph
>> directly answers to the question "what is this ?".  I tend to lose interest or
>> focus when reading narratives such as the first paragraph you propose below.
>
> The second paragraph doesn't make much sense to jump right into
> without the first paragraph there to introduce it.

I've committed the first paragraph and the changes to the second one
that were missed.