[Euroforth] EuroForth 2020 proceedings available

[Anton Ertl]

While preparing the announcement of the 2021 proceedings, I noticed
that I had not announced the 2020 proceedings (even though they have
been available for a while), so here we go:

You can find the proceedings at

http://www.euroforth.org/ef20/papers/

You can also find BibTeX entries for the papers and presentations
there, as well as links to the videos (some of which are not
represented in the proceedings PDF).

- anton