Changes

** 2022 — TUG — <i>Pushing math forward with luametatex and ConTeXt</i>**** [https://www.youtube.com/watch?v=WuRa4cnXK-I 2022 — TUG video - Pushing math forward with luametatex and ConTeXt] ** [https://tug.org/tug2022/assets/served/Mikael_P._Sundqvist-TUG2022-sundqvist-lmtx-math-slides.pdf the slides]** [https://tug.org/TUGboat/tb43-2/tb134hagen-math.pdf the article ] (TUGboat, Volume 43 (2022), No. 2)]** [https://tug.org/TUGboat/tb43-3/tb135hagen-mathchange.pdf a second article 2022 — TUG — <i>New directions in math fonts</i> (TUGboat, Volume 43 (2022), No. 2)] .