Re: releasing 2.21.2

[Federico Bruni]

Phil, while rebasing a local branch I noticed that you forgot to bump 
the latest version here:
https://gitlab.com/lilypond/lilypond/-/blob/master/Documentation/web/news-headlines.itexi#L23

should be 2.21.2



BTW, the anchors for the @uref items in news-headlines.itexi are giving 
me headache. Any way to simplify them?
I don't know texinfo, it might exist a nice workaround.. the easiest 
workaround could be the following.

1. In new-new.itexi, change the @subheading to a simple string:
@subheading Latest development version
...
@subheading Latest stable version

and move the date and versions in the paragraph, e.g.:

@emph{June 21, 2020} - We are happy to announce the release of LilyPond 
2.21.2.

2. Then in news-headlines the @uref would never change (at least for 
the two lilypond versions):

@uref{news.html#Latest-development-version,
 LilyPond 2.21.2 released - @emph{June 21, 2020}}

@uref{news.html#Latest-stable-version,
 LilyPond 2.20.0 released - @emph{March 1, 2020}}


What do you think?