[texworks] AppImage support

[Stefan Löffler]

Dear TeXworks users,

for those of you running Linux I am happy to announce that I recently 
included an AppImage binary in the list automatic builds. This is still 
experimental, and it's only available for the development version at the 
moment. But if all goes well an AppImage binary should also be available 
for the next stable release.

I would be grateful if those interested in running the latest version of 
TeXworks on Linux (with most of the latest libraries) would try the 
AppImage (and, of course, report issues if there are any). The AppImage 
is linked from the homepage 
[https://tug.org/texworks/#Online_resources], the current direct link is 
https://nightly.link/TeXworks/texworks/workflows/cd/main/TeXworks-AppImage.

The AppImage should work with glibc >= 2.28 (as required by the Qt6 
library [https://doc.qt.io/qt-6/supported-platforms.html]), this 
includes Debian >= 10, Ubuntu >= 18.10, Fedora >= 29, openSUSE >= 15.3, etc.

All the best for 2023,
Stefan