[PATCH v2] NEWS: Document the recent 'nmbug clone' and @{upstream} changes

[David Bremner]

"W. Trevor King" <wking at tremily.us> writes:

> The changes landed with c200167 (nmbug: Add 'clone' and replace
> FETCH_HEAD with @{upstream}, 2014-03-09).
>
> The preferred markup language for NEWS seems to be Markdown, which is
> parsed by devel/news2wiki.pl into Markdown chunks for rendering by
> ikiwiki [1].

pushed.